1 #define PETSCMAT_DLL 2 3 /* 4 Factorization code for BAIJ format. 5 */ 6 #include "../src/mat/impls/baij/seq/baij.h" 7 #include "../src/mat/blockinvert.h" 8 /* 9 Version for when blocks are 7 by 7 10 */ 11 #undef __FUNCT__ 12 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7" 13 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7(Mat C,Mat A,const MatFactorInfo *info) 14 { 15 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)A->data,*b = (Mat_SeqBAIJ *)C->data; 16 IS isrow = b->row,isicol = b->icol; 17 PetscErrorCode ierr; 18 const PetscInt *r,*ic,*bi = b->i,*bj = b->j,*ajtmp,*diag_offset = b->diag,*ai=a->i,*aj=a->j,*pj,*ajtmpold; 19 PetscInt i,j,n = a->mbs,nz,row,idx; 20 MatScalar *pv,*v,*rtmp,*pc,*w,*x; 21 MatScalar p1,p2,p3,p4,m1,m2,m3,m4,m5,m6,m7,m8,m9,x1,x2,x3,x4; 22 MatScalar p5,p6,p7,p8,p9,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,x16; 23 MatScalar x17,x18,x19,x20,x21,x22,x23,x24,x25,p10,p11,p12,p13,p14; 24 MatScalar p15,p16,p17,p18,p19,p20,p21,p22,p23,p24,p25,m10,m11,m12; 25 MatScalar m13,m14,m15,m16,m17,m18,m19,m20,m21,m22,m23,m24,m25; 26 MatScalar p26,p27,p28,p29,p30,p31,p32,p33,p34,p35,p36; 27 MatScalar p37,p38,p39,p40,p41,p42,p43,p44,p45,p46,p47,p48,p49; 28 MatScalar x26,x27,x28,x29,x30,x31,x32,x33,x34,x35,x36; 29 MatScalar x37,x38,x39,x40,x41,x42,x43,x44,x45,x46,x47,x48,x49; 30 MatScalar m26,m27,m28,m29,m30,m31,m32,m33,m34,m35,m36; 31 MatScalar m37,m38,m39,m40,m41,m42,m43,m44,m45,m46,m47,m48,m49; 32 MatScalar *ba = b->a,*aa = a->a; 33 PetscReal shift = info->shiftinblocks; 34 35 PetscFunctionBegin; 36 ierr = ISGetIndices(isrow,&r);CHKERRQ(ierr); 37 ierr = ISGetIndices(isicol,&ic);CHKERRQ(ierr); 38 ierr = PetscMalloc(49*(n+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 39 40 for (i=0; i<n; i++) { 41 nz = bi[i+1] - bi[i]; 42 ajtmp = bj + bi[i]; 43 for (j=0; j<nz; j++) { 44 x = rtmp+49*ajtmp[j]; 45 x[0] = x[1] = x[2] = x[3] = x[4] = x[5] = x[6] = x[7] = x[8] = x[9] = 0.0; 46 x[10] = x[11] = x[12] = x[13] = x[14] = x[15] = x[16] = x[17] = 0.0; 47 x[18] = x[19] = x[20] = x[21] = x[22] = x[23] = x[24] = x[25] = 0.0 ; 48 x[26] = x[27] = x[28] = x[29] = x[30] = x[31] = x[32] = x[33] = 0.0 ; 49 x[34] = x[35] = x[36] = x[37] = x[38] = x[39] = x[40] = x[41] = 0.0 ; 50 x[42] = x[43] = x[44] = x[45] = x[46] = x[47] = x[48] = 0.0 ; 51 } 52 /* load in initial (unfactored row) */ 53 idx = r[i]; 54 nz = ai[idx+1] - ai[idx]; 55 ajtmpold = aj + ai[idx]; 56 v = aa + 49*ai[idx]; 57 for (j=0; j<nz; j++) { 58 x = rtmp+49*ic[ajtmpold[j]]; 59 x[0] = v[0]; x[1] = v[1]; x[2] = v[2]; x[3] = v[3]; 60 x[4] = v[4]; x[5] = v[5]; x[6] = v[6]; x[7] = v[7]; 61 x[8] = v[8]; x[9] = v[9]; x[10] = v[10]; x[11] = v[11]; 62 x[12] = v[12]; x[13] = v[13]; x[14] = v[14]; x[15] = v[15]; 63 x[16] = v[16]; x[17] = v[17]; x[18] = v[18]; x[19] = v[19]; 64 x[20] = v[20]; x[21] = v[21]; x[22] = v[22]; x[23] = v[23]; 65 x[24] = v[24]; x[25] = v[25]; x[26] = v[26]; x[27] = v[27]; 66 x[28] = v[28]; x[29] = v[29]; x[30] = v[30]; x[31] = v[31]; 67 x[32] = v[32]; x[33] = v[33]; x[34] = v[34]; x[35] = v[35]; 68 x[36] = v[36]; x[37] = v[37]; x[38] = v[38]; x[39] = v[39]; 69 x[40] = v[40]; x[41] = v[41]; x[42] = v[42]; x[43] = v[43]; 70 x[44] = v[44]; x[45] = v[45]; x[46] = v[46]; x[47] = v[47]; 71 x[48] = v[48]; 72 v += 49; 73 } 74 row = *ajtmp++; 75 while (row < i) { 76 pc = rtmp + 49*row; 77 p1 = pc[0]; p2 = pc[1]; p3 = pc[2]; p4 = pc[3]; 78 p5 = pc[4]; p6 = pc[5]; p7 = pc[6]; p8 = pc[7]; 79 p9 = pc[8]; p10 = pc[9]; p11 = pc[10]; p12 = pc[11]; 80 p13 = pc[12]; p14 = pc[13]; p15 = pc[14]; p16 = pc[15]; 81 p17 = pc[16]; p18 = pc[17]; p19 = pc[18]; p20 = pc[19]; 82 p21 = pc[20]; p22 = pc[21]; p23 = pc[22]; p24 = pc[23]; 83 p25 = pc[24]; p26 = pc[25]; p27 = pc[26]; p28 = pc[27]; 84 p29 = pc[28]; p30 = pc[29]; p31 = pc[30]; p32 = pc[31]; 85 p33 = pc[32]; p34 = pc[33]; p35 = pc[34]; p36 = pc[35]; 86 p37 = pc[36]; p38 = pc[37]; p39 = pc[38]; p40 = pc[39]; 87 p41 = pc[40]; p42 = pc[41]; p43 = pc[42]; p44 = pc[43]; 88 p45 = pc[44]; p46 = pc[45]; p47 = pc[46]; p48 = pc[47]; 89 p49 = pc[48]; 90 if (p1 != 0.0 || p2 != 0.0 || p3 != 0.0 || p4 != 0.0 || 91 p5 != 0.0 || p6 != 0.0 || p7 != 0.0 || p8 != 0.0 || 92 p9 != 0.0 || p10 != 0.0 || p11 != 0.0 || p12 != 0.0 || 93 p13 != 0.0 || p14 != 0.0 || p15 != 0.0 || p16 != 0.0 || 94 p17 != 0.0 || p18 != 0.0 || p19 != 0.0 || p20 != 0.0 || 95 p21 != 0.0 || p22 != 0.0 || p23 != 0.0 || p24 != 0.0 || 96 p25 != 0.0 || p26 != 0.0 || p27 != 0.0 || p28 != 0.0 || 97 p29 != 0.0 || p30 != 0.0 || p31 != 0.0 || p32 != 0.0 || 98 p33 != 0.0 || p34 != 0.0 || p35 != 0.0 || p36 != 0.0 || 99 p37 != 0.0 || p38 != 0.0 || p39 != 0.0 || p40 != 0.0 || 100 p41 != 0.0 || p42 != 0.0 || p43 != 0.0 || p44 != 0.0 || 101 p45 != 0.0 || p46 != 0.0 || p47 != 0.0 || p48 != 0.0 || 102 p49 != 0.0) { 103 pv = ba + 49*diag_offset[row]; 104 pj = bj + diag_offset[row] + 1; 105 x1 = pv[0]; x2 = pv[1]; x3 = pv[2]; x4 = pv[3]; 106 x5 = pv[4]; x6 = pv[5]; x7 = pv[6]; x8 = pv[7]; 107 x9 = pv[8]; x10 = pv[9]; x11 = pv[10]; x12 = pv[11]; 108 x13 = pv[12]; x14 = pv[13]; x15 = pv[14]; x16 = pv[15]; 109 x17 = pv[16]; x18 = pv[17]; x19 = pv[18]; x20 = pv[19]; 110 x21 = pv[20]; x22 = pv[21]; x23 = pv[22]; x24 = pv[23]; 111 x25 = pv[24]; x26 = pv[25]; x27 = pv[26]; x28 = pv[27]; 112 x29 = pv[28]; x30 = pv[29]; x31 = pv[30]; x32 = pv[31]; 113 x33 = pv[32]; x34 = pv[33]; x35 = pv[34]; x36 = pv[35]; 114 x37 = pv[36]; x38 = pv[37]; x39 = pv[38]; x40 = pv[39]; 115 x41 = pv[40]; x42 = pv[41]; x43 = pv[42]; x44 = pv[43]; 116 x45 = pv[44]; x46 = pv[45]; x47 = pv[46]; x48 = pv[47]; 117 x49 = pv[48]; 118 pc[0] = m1 = p1*x1 + p8*x2 + p15*x3 + p22*x4 + p29*x5 + p36*x6 + p43*x7; 119 pc[1] = m2 = p2*x1 + p9*x2 + p16*x3 + p23*x4 + p30*x5 + p37*x6 + p44*x7; 120 pc[2] = m3 = p3*x1 + p10*x2 + p17*x3 + p24*x4 + p31*x5 + p38*x6 + p45*x7; 121 pc[3] = m4 = p4*x1 + p11*x2 + p18*x3 + p25*x4 + p32*x5 + p39*x6 + p46*x7; 122 pc[4] = m5 = p5*x1 + p12*x2 + p19*x3 + p26*x4 + p33*x5 + p40*x6 + p47*x7; 123 pc[5] = m6 = p6*x1 + p13*x2 + p20*x3 + p27*x4 + p34*x5 + p41*x6 + p48*x7; 124 pc[6] = m7 = p7*x1 + p14*x2 + p21*x3 + p28*x4 + p35*x5 + p42*x6 + p49*x7; 125 126 pc[7] = m8 = p1*x8 + p8*x9 + p15*x10 + p22*x11 + p29*x12 + p36*x13 + p43*x14; 127 pc[8] = m9 = p2*x8 + p9*x9 + p16*x10 + p23*x11 + p30*x12 + p37*x13 + p44*x14; 128 pc[9] = m10 = p3*x8 + p10*x9 + p17*x10 + p24*x11 + p31*x12 + p38*x13 + p45*x14; 129 pc[10] = m11 = p4*x8 + p11*x9 + p18*x10 + p25*x11 + p32*x12 + p39*x13 + p46*x14; 130 pc[11] = m12 = p5*x8 + p12*x9 + p19*x10 + p26*x11 + p33*x12 + p40*x13 + p47*x14; 131 pc[12] = m13 = p6*x8 + p13*x9 + p20*x10 + p27*x11 + p34*x12 + p41*x13 + p48*x14; 132 pc[13] = m14 = p7*x8 + p14*x9 + p21*x10 + p28*x11 + p35*x12 + p42*x13 + p49*x14; 133 134 pc[14] = m15 = p1*x15 + p8*x16 + p15*x17 + p22*x18 + p29*x19 + p36*x20 + p43*x21; 135 pc[15] = m16 = p2*x15 + p9*x16 + p16*x17 + p23*x18 + p30*x19 + p37*x20 + p44*x21; 136 pc[16] = m17 = p3*x15 + p10*x16 + p17*x17 + p24*x18 + p31*x19 + p38*x20 + p45*x21; 137 pc[17] = m18 = p4*x15 + p11*x16 + p18*x17 + p25*x18 + p32*x19 + p39*x20 + p46*x21; 138 pc[18] = m19 = p5*x15 + p12*x16 + p19*x17 + p26*x18 + p33*x19 + p40*x20 + p47*x21; 139 pc[19] = m20 = p6*x15 + p13*x16 + p20*x17 + p27*x18 + p34*x19 + p41*x20 + p48*x21; 140 pc[20] = m21 = p7*x15 + p14*x16 + p21*x17 + p28*x18 + p35*x19 + p42*x20 + p49*x21; 141 142 pc[21] = m22 = p1*x22 + p8*x23 + p15*x24 + p22*x25 + p29*x26 + p36*x27 + p43*x28; 143 pc[22] = m23 = p2*x22 + p9*x23 + p16*x24 + p23*x25 + p30*x26 + p37*x27 + p44*x28; 144 pc[23] = m24 = p3*x22 + p10*x23 + p17*x24 + p24*x25 + p31*x26 + p38*x27 + p45*x28; 145 pc[24] = m25 = p4*x22 + p11*x23 + p18*x24 + p25*x25 + p32*x26 + p39*x27 + p46*x28; 146 pc[25] = m26 = p5*x22 + p12*x23 + p19*x24 + p26*x25 + p33*x26 + p40*x27 + p47*x28; 147 pc[26] = m27 = p6*x22 + p13*x23 + p20*x24 + p27*x25 + p34*x26 + p41*x27 + p48*x28; 148 pc[27] = m28 = p7*x22 + p14*x23 + p21*x24 + p28*x25 + p35*x26 + p42*x27 + p49*x28; 149 150 pc[28] = m29 = p1*x29 + p8*x30 + p15*x31 + p22*x32 + p29*x33 + p36*x34 + p43*x35; 151 pc[29] = m30 = p2*x29 + p9*x30 + p16*x31 + p23*x32 + p30*x33 + p37*x34 + p44*x35; 152 pc[30] = m31 = p3*x29 + p10*x30 + p17*x31 + p24*x32 + p31*x33 + p38*x34 + p45*x35; 153 pc[31] = m32 = p4*x29 + p11*x30 + p18*x31 + p25*x32 + p32*x33 + p39*x34 + p46*x35; 154 pc[32] = m33 = p5*x29 + p12*x30 + p19*x31 + p26*x32 + p33*x33 + p40*x34 + p47*x35; 155 pc[33] = m34 = p6*x29 + p13*x30 + p20*x31 + p27*x32 + p34*x33 + p41*x34 + p48*x35; 156 pc[34] = m35 = p7*x29 + p14*x30 + p21*x31 + p28*x32 + p35*x33 + p42*x34 + p49*x35; 157 158 pc[35] = m36 = p1*x36 + p8*x37 + p15*x38 + p22*x39 + p29*x40 + p36*x41 + p43*x42; 159 pc[36] = m37 = p2*x36 + p9*x37 + p16*x38 + p23*x39 + p30*x40 + p37*x41 + p44*x42; 160 pc[37] = m38 = p3*x36 + p10*x37 + p17*x38 + p24*x39 + p31*x40 + p38*x41 + p45*x42; 161 pc[38] = m39 = p4*x36 + p11*x37 + p18*x38 + p25*x39 + p32*x40 + p39*x41 + p46*x42; 162 pc[39] = m40 = p5*x36 + p12*x37 + p19*x38 + p26*x39 + p33*x40 + p40*x41 + p47*x42; 163 pc[40] = m41 = p6*x36 + p13*x37 + p20*x38 + p27*x39 + p34*x40 + p41*x41 + p48*x42; 164 pc[41] = m42 = p7*x36 + p14*x37 + p21*x38 + p28*x39 + p35*x40 + p42*x41 + p49*x42; 165 166 pc[42] = m43 = p1*x43 + p8*x44 + p15*x45 + p22*x46 + p29*x47 + p36*x48 + p43*x49; 167 pc[43] = m44 = p2*x43 + p9*x44 + p16*x45 + p23*x46 + p30*x47 + p37*x48 + p44*x49; 168 pc[44] = m45 = p3*x43 + p10*x44 + p17*x45 + p24*x46 + p31*x47 + p38*x48 + p45*x49; 169 pc[45] = m46 = p4*x43 + p11*x44 + p18*x45 + p25*x46 + p32*x47 + p39*x48 + p46*x49; 170 pc[46] = m47 = p5*x43 + p12*x44 + p19*x45 + p26*x46 + p33*x47 + p40*x48 + p47*x49; 171 pc[47] = m48 = p6*x43 + p13*x44 + p20*x45 + p27*x46 + p34*x47 + p41*x48 + p48*x49; 172 pc[48] = m49 = p7*x43 + p14*x44 + p21*x45 + p28*x46 + p35*x47 + p42*x48 + p49*x49; 173 174 nz = bi[row+1] - diag_offset[row] - 1; 175 pv += 49; 176 for (j=0; j<nz; j++) { 177 x1 = pv[0]; x2 = pv[1]; x3 = pv[2]; x4 = pv[3]; 178 x5 = pv[4]; x6 = pv[5]; x7 = pv[6]; x8 = pv[7]; 179 x9 = pv[8]; x10 = pv[9]; x11 = pv[10]; x12 = pv[11]; 180 x13 = pv[12]; x14 = pv[13]; x15 = pv[14]; x16 = pv[15]; 181 x17 = pv[16]; x18 = pv[17]; x19 = pv[18]; x20 = pv[19]; 182 x21 = pv[20]; x22 = pv[21]; x23 = pv[22]; x24 = pv[23]; 183 x25 = pv[24]; x26 = pv[25]; x27 = pv[26]; x28 = pv[27]; 184 x29 = pv[28]; x30 = pv[29]; x31 = pv[30]; x32 = pv[31]; 185 x33 = pv[32]; x34 = pv[33]; x35 = pv[34]; x36 = pv[35]; 186 x37 = pv[36]; x38 = pv[37]; x39 = pv[38]; x40 = pv[39]; 187 x41 = pv[40]; x42 = pv[41]; x43 = pv[42]; x44 = pv[43]; 188 x45 = pv[44]; x46 = pv[45]; x47 = pv[46]; x48 = pv[47]; 189 x49 = pv[48]; 190 x = rtmp + 49*pj[j]; 191 x[0] -= m1*x1 + m8*x2 + m15*x3 + m22*x4 + m29*x5 + m36*x6 + m43*x7; 192 x[1] -= m2*x1 + m9*x2 + m16*x3 + m23*x4 + m30*x5 + m37*x6 + m44*x7; 193 x[2] -= m3*x1 + m10*x2 + m17*x3 + m24*x4 + m31*x5 + m38*x6 + m45*x7; 194 x[3] -= m4*x1 + m11*x2 + m18*x3 + m25*x4 + m32*x5 + m39*x6 + m46*x7; 195 x[4] -= m5*x1 + m12*x2 + m19*x3 + m26*x4 + m33*x5 + m40*x6 + m47*x7; 196 x[5] -= m6*x1 + m13*x2 + m20*x3 + m27*x4 + m34*x5 + m41*x6 + m48*x7; 197 x[6] -= m7*x1 + m14*x2 + m21*x3 + m28*x4 + m35*x5 + m42*x6 + m49*x7; 198 199 x[7] -= m1*x8 + m8*x9 + m15*x10 + m22*x11 + m29*x12 + m36*x13 + m43*x14; 200 x[8] -= m2*x8 + m9*x9 + m16*x10 + m23*x11 + m30*x12 + m37*x13 + m44*x14; 201 x[9] -= m3*x8 + m10*x9 + m17*x10 + m24*x11 + m31*x12 + m38*x13 + m45*x14; 202 x[10] -= m4*x8 + m11*x9 + m18*x10 + m25*x11 + m32*x12 + m39*x13 + m46*x14; 203 x[11] -= m5*x8 + m12*x9 + m19*x10 + m26*x11 + m33*x12 + m40*x13 + m47*x14; 204 x[12] -= m6*x8 + m13*x9 + m20*x10 + m27*x11 + m34*x12 + m41*x13 + m48*x14; 205 x[13] -= m7*x8 + m14*x9 + m21*x10 + m28*x11 + m35*x12 + m42*x13 + m49*x14; 206 207 x[14] -= m1*x15 + m8*x16 + m15*x17 + m22*x18 + m29*x19 + m36*x20 + m43*x21; 208 x[15] -= m2*x15 + m9*x16 + m16*x17 + m23*x18 + m30*x19 + m37*x20 + m44*x21; 209 x[16] -= m3*x15 + m10*x16 + m17*x17 + m24*x18 + m31*x19 + m38*x20 + m45*x21; 210 x[17] -= m4*x15 + m11*x16 + m18*x17 + m25*x18 + m32*x19 + m39*x20 + m46*x21; 211 x[18] -= m5*x15 + m12*x16 + m19*x17 + m26*x18 + m33*x19 + m40*x20 + m47*x21; 212 x[19] -= m6*x15 + m13*x16 + m20*x17 + m27*x18 + m34*x19 + m41*x20 + m48*x21; 213 x[20] -= m7*x15 + m14*x16 + m21*x17 + m28*x18 + m35*x19 + m42*x20 + m49*x21; 214 215 x[21] -= m1*x22 + m8*x23 + m15*x24 + m22*x25 + m29*x26 + m36*x27 + m43*x28; 216 x[22] -= m2*x22 + m9*x23 + m16*x24 + m23*x25 + m30*x26 + m37*x27 + m44*x28; 217 x[23] -= m3*x22 + m10*x23 + m17*x24 + m24*x25 + m31*x26 + m38*x27 + m45*x28; 218 x[24] -= m4*x22 + m11*x23 + m18*x24 + m25*x25 + m32*x26 + m39*x27 + m46*x28; 219 x[25] -= m5*x22 + m12*x23 + m19*x24 + m26*x25 + m33*x26 + m40*x27 + m47*x28; 220 x[26] -= m6*x22 + m13*x23 + m20*x24 + m27*x25 + m34*x26 + m41*x27 + m48*x28; 221 x[27] -= m7*x22 + m14*x23 + m21*x24 + m28*x25 + m35*x26 + m42*x27 + m49*x28; 222 223 x[28] -= m1*x29 + m8*x30 + m15*x31 + m22*x32 + m29*x33 + m36*x34 + m43*x35; 224 x[29] -= m2*x29 + m9*x30 + m16*x31 + m23*x32 + m30*x33 + m37*x34 + m44*x35; 225 x[30] -= m3*x29 + m10*x30 + m17*x31 + m24*x32 + m31*x33 + m38*x34 + m45*x35; 226 x[31] -= m4*x29 + m11*x30 + m18*x31 + m25*x32 + m32*x33 + m39*x34 + m46*x35; 227 x[32] -= m5*x29 + m12*x30 + m19*x31 + m26*x32 + m33*x33 + m40*x34 + m47*x35; 228 x[33] -= m6*x29 + m13*x30 + m20*x31 + m27*x32 + m34*x33 + m41*x34 + m48*x35; 229 x[34] -= m7*x29 + m14*x30 + m21*x31 + m28*x32 + m35*x33 + m42*x34 + m49*x35; 230 231 x[35] -= m1*x36 + m8*x37 + m15*x38 + m22*x39 + m29*x40 + m36*x41 + m43*x42; 232 x[36] -= m2*x36 + m9*x37 + m16*x38 + m23*x39 + m30*x40 + m37*x41 + m44*x42; 233 x[37] -= m3*x36 + m10*x37 + m17*x38 + m24*x39 + m31*x40 + m38*x41 + m45*x42; 234 x[38] -= m4*x36 + m11*x37 + m18*x38 + m25*x39 + m32*x40 + m39*x41 + m46*x42; 235 x[39] -= m5*x36 + m12*x37 + m19*x38 + m26*x39 + m33*x40 + m40*x41 + m47*x42; 236 x[40] -= m6*x36 + m13*x37 + m20*x38 + m27*x39 + m34*x40 + m41*x41 + m48*x42; 237 x[41] -= m7*x36 + m14*x37 + m21*x38 + m28*x39 + m35*x40 + m42*x41 + m49*x42; 238 239 x[42] -= m1*x43 + m8*x44 + m15*x45 + m22*x46 + m29*x47 + m36*x48 + m43*x49; 240 x[43] -= m2*x43 + m9*x44 + m16*x45 + m23*x46 + m30*x47 + m37*x48 + m44*x49; 241 x[44] -= m3*x43 + m10*x44 + m17*x45 + m24*x46 + m31*x47 + m38*x48 + m45*x49; 242 x[45] -= m4*x43 + m11*x44 + m18*x45 + m25*x46 + m32*x47 + m39*x48 + m46*x49; 243 x[46] -= m5*x43 + m12*x44 + m19*x45 + m26*x46 + m33*x47 + m40*x48 + m47*x49; 244 x[47] -= m6*x43 + m13*x44 + m20*x45 + m27*x46 + m34*x47 + m41*x48 + m48*x49; 245 x[48] -= m7*x43 + m14*x44 + m21*x45 + m28*x46 + m35*x47 + m42*x48 + m49*x49; 246 pv += 49; 247 } 248 ierr = PetscLogFlops(686.0*nz+637.0);CHKERRQ(ierr); 249 } 250 row = *ajtmp++; 251 } 252 /* finished row so stick it into b->a */ 253 pv = ba + 49*bi[i]; 254 pj = bj + bi[i]; 255 nz = bi[i+1] - bi[i]; 256 for (j=0; j<nz; j++) { 257 x = rtmp+49*pj[j]; 258 pv[0] = x[0]; pv[1] = x[1]; pv[2] = x[2]; pv[3] = x[3]; 259 pv[4] = x[4]; pv[5] = x[5]; pv[6] = x[6]; pv[7] = x[7]; 260 pv[8] = x[8]; pv[9] = x[9]; pv[10] = x[10]; pv[11] = x[11]; 261 pv[12] = x[12]; pv[13] = x[13]; pv[14] = x[14]; pv[15] = x[15]; 262 pv[16] = x[16]; pv[17] = x[17]; pv[18] = x[18]; pv[19] = x[19]; 263 pv[20] = x[20]; pv[21] = x[21]; pv[22] = x[22]; pv[23] = x[23]; 264 pv[24] = x[24]; pv[25] = x[25]; pv[26] = x[26]; pv[27] = x[27]; 265 pv[28] = x[28]; pv[29] = x[29]; pv[30] = x[30]; pv[31] = x[31]; 266 pv[32] = x[32]; pv[33] = x[33]; pv[34] = x[34]; pv[35] = x[35]; 267 pv[36] = x[36]; pv[37] = x[37]; pv[38] = x[38]; pv[39] = x[39]; 268 pv[40] = x[40]; pv[41] = x[41]; pv[42] = x[42]; pv[43] = x[43]; 269 pv[44] = x[44]; pv[45] = x[45]; pv[46] = x[46]; pv[47] = x[47]; 270 pv[48] = x[48]; 271 pv += 49; 272 } 273 /* invert diagonal block */ 274 w = ba + 49*diag_offset[i]; 275 ierr = Kernel_A_gets_inverse_A_7(w,shift);CHKERRQ(ierr); 276 } 277 278 ierr = PetscFree(rtmp);CHKERRQ(ierr); 279 ierr = ISRestoreIndices(isicol,&ic);CHKERRQ(ierr); 280 ierr = ISRestoreIndices(isrow,&r);CHKERRQ(ierr); 281 C->ops->solve = MatSolve_SeqBAIJ_7; 282 C->ops->solvetranspose = MatSolveTranspose_SeqBAIJ_7; 283 C->assembled = PETSC_TRUE; 284 ierr = PetscLogFlops(1.3333*343*b->mbs);CHKERRQ(ierr); /* from inverting diagonal blocks */ 285 PetscFunctionReturn(0); 286 } 287 288 #undef __FUNCT__ 289 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7_newdatastruct" 290 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7_newdatastruct(Mat B,Mat A,const MatFactorInfo *info) 291 { 292 Mat C=B; 293 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)A->data,*b=(Mat_SeqBAIJ *)C->data; 294 IS isrow = b->row,isicol = b->icol; 295 PetscErrorCode ierr; 296 const PetscInt *r,*ic,*ics; 297 PetscInt i,j,k,n=a->mbs,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 298 PetscInt *ajtmp,*bjtmp,nz,nzL,row,*bdiag=b->diag,*pj; 299 MatScalar *rtmp,*pc,*mwork,*v,*pv,*aa=a->a; 300 PetscInt bs2 = a->bs2,flg; 301 PetscReal shift = info->shiftinblocks; 302 303 PetscFunctionBegin; 304 ierr = ISGetIndices(isrow,&r);CHKERRQ(ierr); 305 ierr = ISGetIndices(isicol,&ic);CHKERRQ(ierr); 306 307 /* generate work space needed by the factorization */ 308 ierr = PetscMalloc((bs2*n+bs2+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 309 mwork = rtmp + bs2*n; 310 ierr = PetscMemzero(rtmp,bs2*n*sizeof(MatScalar));CHKERRQ(ierr); 311 ics = ic; 312 313 for (i=0; i<n; i++){ 314 /* zero rtmp */ 315 /* L part */ 316 nz = bi[i+1] - bi[i]; 317 bjtmp = bj + bi[i]; 318 for (j=0; j<nz; j++){ 319 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 320 } 321 322 /* U part */ 323 nz = bi[2*n-i+1] - bi[2*n-i]; 324 bjtmp = bj + bi[2*n-i]; 325 for (j=0; j<nz; j++){ 326 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 327 } 328 329 /* load in initial (unfactored row) */ 330 nz = ai[r[i]+1] - ai[r[i]]; 331 ajtmp = aj + ai[r[i]]; 332 v = aa + bs2*ai[r[i]]; 333 for (j=0; j<nz; j++) { 334 ierr = PetscMemcpy(rtmp+bs2*ic[ajtmp[j]],v+bs2*j,bs2*sizeof(MatScalar));CHKERRQ(ierr); 335 } 336 337 /* elimination */ 338 bjtmp = bj + bi[i]; 339 nzL = bi[i+1] - bi[i]; 340 for(k=0;k < nzL;k++) { 341 row = bjtmp[k]; 342 pc = rtmp + bs2*row; 343 for (flg=0,j=0; j<bs2; j++) { if (pc[j]!=0.0) { flg = 1; break; }} 344 if (flg) { 345 pv = b->a + bs2*bdiag[row]; 346 /* Kernel_A_gets_A_times_B(bs,pc,pv,mwork); *pc = *pc * (*pv); */ 347 ierr = Kernel_A_gets_A_times_B_7(pc,pv,mwork);CHKERRQ(ierr); 348 349 pj = b->j + bi[2*n-row]; /* begining of U(row,:) */ 350 pv = b->a + bs2*bi[2*n-row]; 351 nz = bi[2*n-row+1] - bi[2*n-row] - 1; /* num of entries inU(row,:), excluding diag */ 352 for (j=0; j<nz; j++) { 353 /* Kernel_A_gets_A_minus_B_times_C(bs,rtmp+bs2*pj[j],pc,pv+bs2*j); */ 354 /* rtmp+bs2*pj[j] = rtmp+bs2*pj[j] - (*pc)*(pv+bs2*j) */ 355 v = rtmp + bs2*pj[j]; 356 ierr = Kernel_A_gets_A_minus_B_times_C_7(v,pc,pv);CHKERRQ(ierr); 357 pv += bs2; 358 } 359 ierr = PetscLogFlops(686*nz+637);CHKERRQ(ierr); /* flops = 2*bs^3*nz + 2*bs^3 - bs2) */ 360 } 361 } 362 363 /* finished row so stick it into b->a */ 364 /* L part */ 365 pv = b->a + bs2*bi[i] ; 366 pj = b->j + bi[i] ; 367 nz = bi[i+1] - bi[i]; 368 for (j=0; j<nz; j++) { 369 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 370 } 371 372 /* Mark diagonal and invert diagonal for simplier triangular solves */ 373 pv = b->a + bs2*bdiag[i]; 374 pj = b->j + bdiag[i]; 375 ierr = PetscMemcpy(pv,rtmp+bs2*pj[0],bs2*sizeof(MatScalar));CHKERRQ(ierr); 376 /* ierr = Kernel_A_gets_inverse_A(bs,pv,v_pivots,v_work);CHKERRQ(ierr); */ 377 ierr = Kernel_A_gets_inverse_A_7(pv,shift);CHKERRQ(ierr); 378 379 /* U part */ 380 pv = b->a + bs2*bi[2*n-i]; 381 pj = b->j + bi[2*n-i]; 382 nz = bi[2*n-i+1] - bi[2*n-i] - 1; 383 for (j=0; j<nz; j++){ 384 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 385 } 386 } 387 388 ierr = PetscFree(rtmp);CHKERRQ(ierr); 389 ierr = ISRestoreIndices(isicol,&ic);CHKERRQ(ierr); 390 ierr = ISRestoreIndices(isrow,&r);CHKERRQ(ierr); 391 392 C->assembled = PETSC_TRUE; 393 ierr = PetscLogFlops(1.3333*bs2*n);CHKERRQ(ierr); /* from inverting diagonal blocks */ 394 PetscFunctionReturn(0); 395 } 396 397 #undef __FUNCT__ 398 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7_newdatastruct_v2" 399 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7_newdatastruct_v2(Mat B,Mat A,const MatFactorInfo *info) 400 { 401 Mat C=B; 402 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)A->data,*b=(Mat_SeqBAIJ *)C->data; 403 IS isrow = b->row,isicol = b->icol; 404 PetscErrorCode ierr; 405 const PetscInt *r,*ic,*ics; 406 PetscInt i,j,k,n=a->mbs,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 407 PetscInt *ajtmp,*bjtmp,nz,nzL,row,*bdiag=b->diag,*pj; 408 MatScalar *rtmp,*pc,*mwork,*v,*pv,*aa=a->a; 409 PetscInt bs2 = a->bs2,flg; 410 PetscReal shift = info->shiftinblocks; 411 412 PetscFunctionBegin; 413 ierr = ISGetIndices(isrow,&r);CHKERRQ(ierr); 414 ierr = ISGetIndices(isicol,&ic);CHKERRQ(ierr); 415 416 /* generate work space needed by the factorization */ 417 ierr = PetscMalloc((bs2*n+bs2+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 418 mwork = rtmp + bs2*n; 419 ierr = PetscMemzero(rtmp,bs2*n*sizeof(MatScalar));CHKERRQ(ierr); 420 ics = ic; 421 422 for (i=0; i<n; i++){ 423 /* zero rtmp */ 424 /* L part */ 425 nz = bi[i+1] - bi[i]; 426 bjtmp = bj + bi[i]; 427 for (j=0; j<nz; j++){ 428 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 429 } 430 431 /* U part */ 432 nz = bdiag[i] - bdiag[i+1]; 433 bjtmp = bj + bdiag[i+1]+1; 434 for (j=0; j<nz; j++){ 435 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 436 } 437 438 /* load in initial (unfactored row) */ 439 nz = ai[r[i]+1] - ai[r[i]]; 440 ajtmp = aj + ai[r[i]]; 441 v = aa + bs2*ai[r[i]]; 442 for (j=0; j<nz; j++) { 443 ierr = PetscMemcpy(rtmp+bs2*ic[ajtmp[j]],v+bs2*j,bs2*sizeof(MatScalar));CHKERRQ(ierr); 444 } 445 446 /* elimination */ 447 bjtmp = bj + bi[i]; 448 nzL = bi[i+1] - bi[i]; 449 for(k=0;k < nzL;k++) { 450 row = bjtmp[k]; 451 pc = rtmp + bs2*row; 452 for (flg=0,j=0; j<bs2; j++) { if (pc[j]!=0.0) { flg = 1; break; }} 453 if (flg) { 454 pv = b->a + bs2*bdiag[row]; 455 /* Kernel_A_gets_A_times_B(bs,pc,pv,mwork); *pc = *pc * (*pv); */ 456 ierr = Kernel_A_gets_A_times_B_7(pc,pv,mwork);CHKERRQ(ierr); 457 458 pj = b->j + bdiag[row+1]+1; /* begining of U(row,:) */ 459 pv = b->a + bs2*(bdiag[row+1]+1); 460 nz = bdiag[row] - bdiag[row+1] - 1; /* num of entries inU(row,:), excluding diag */ 461 for (j=0; j<nz; j++) { 462 /* Kernel_A_gets_A_minus_B_times_C(bs,rtmp+bs2*pj[j],pc,pv+bs2*j); */ 463 /* rtmp+bs2*pj[j] = rtmp+bs2*pj[j] - (*pc)*(pv+bs2*j) */ 464 v = rtmp + bs2*pj[j]; 465 ierr = Kernel_A_gets_A_minus_B_times_C_7(v,pc,pv);CHKERRQ(ierr); 466 pv += bs2; 467 } 468 ierr = PetscLogFlops(686*nz+637);CHKERRQ(ierr); /* flops = 2*bs^3*nz + 2*bs^3 - bs2) */ 469 } 470 } 471 472 /* finished row so stick it into b->a */ 473 /* L part */ 474 pv = b->a + bs2*bi[i] ; 475 pj = b->j + bi[i] ; 476 nz = bi[i+1] - bi[i]; 477 for (j=0; j<nz; j++) { 478 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 479 } 480 481 /* Mark diagonal and invert diagonal for simplier triangular solves */ 482 pv = b->a + bs2*bdiag[i]; 483 pj = b->j + bdiag[i]; 484 ierr = PetscMemcpy(pv,rtmp+bs2*pj[0],bs2*sizeof(MatScalar));CHKERRQ(ierr); 485 /* ierr = Kernel_A_gets_inverse_A(bs,pv,v_pivots,v_work);CHKERRQ(ierr); */ 486 ierr = Kernel_A_gets_inverse_A_7(pv,shift);CHKERRQ(ierr); 487 488 /* U part */ 489 pv = b->a + bs2*(bdiag[i+1]+1); 490 pj = b->j + bdiag[i+1]+1; 491 nz = bdiag[i] - bdiag[i+1] - 1; 492 for (j=0; j<nz; j++){ 493 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 494 } 495 } 496 497 ierr = PetscFree(rtmp);CHKERRQ(ierr); 498 ierr = ISRestoreIndices(isicol,&ic);CHKERRQ(ierr); 499 ierr = ISRestoreIndices(isrow,&r);CHKERRQ(ierr); 500 501 C->assembled = PETSC_TRUE; 502 ierr = PetscLogFlops(1.3333*bs2*n);CHKERRQ(ierr); /* from inverting diagonal blocks */ 503 PetscFunctionReturn(0); 504 } 505 506 #undef __FUNCT__ 507 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering" 508 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering(Mat C,Mat A,const MatFactorInfo *info) 509 { 510 Mat_SeqBAIJ *a = (Mat_SeqBAIJ*)A->data,*b = (Mat_SeqBAIJ *)C->data; 511 PetscErrorCode ierr; 512 PetscInt i,j,n = a->mbs,*bi = b->i,*bj = b->j; 513 PetscInt *ajtmpold,*ajtmp,nz,row; 514 PetscInt *diag_offset = b->diag,*ai=a->i,*aj=a->j,*pj; 515 MatScalar *pv,*v,*rtmp,*pc,*w,*x; 516 MatScalar x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15; 517 MatScalar x16,x17,x18,x19,x20,x21,x22,x23,x24,x25; 518 MatScalar p1,p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12,p13,p14,p15; 519 MatScalar p16,p17,p18,p19,p20,p21,p22,p23,p24,p25; 520 MatScalar m1,m2,m3,m4,m5,m6,m7,m8,m9,m10,m11,m12,m13,m14,m15; 521 MatScalar m16,m17,m18,m19,m20,m21,m22,m23,m24,m25; 522 MatScalar p26,p27,p28,p29,p30,p31,p32,p33,p34,p35,p36; 523 MatScalar p37,p38,p39,p40,p41,p42,p43,p44,p45,p46,p47,p48,p49; 524 MatScalar x26,x27,x28,x29,x30,x31,x32,x33,x34,x35,x36; 525 MatScalar x37,x38,x39,x40,x41,x42,x43,x44,x45,x46,x47,x48,x49; 526 MatScalar m26,m27,m28,m29,m30,m31,m32,m33,m34,m35,m36; 527 MatScalar m37,m38,m39,m40,m41,m42,m43,m44,m45,m46,m47,m48,m49; 528 MatScalar *ba = b->a,*aa = a->a; 529 PetscReal shift = info->shiftinblocks; 530 531 PetscFunctionBegin; 532 ierr = PetscMalloc(49*(n+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 533 for (i=0; i<n; i++) { 534 nz = bi[i+1] - bi[i]; 535 ajtmp = bj + bi[i]; 536 for (j=0; j<nz; j++) { 537 x = rtmp+49*ajtmp[j]; 538 x[0] = x[1] = x[2] = x[3] = x[4] = x[5] = x[6] = x[7] = x[8] = x[9] = 0.0; 539 x[10] = x[11] = x[12] = x[13] = x[14] = x[15] = x[16] = x[17] = 0.0; 540 x[18] = x[19] = x[20] = x[21] = x[22] = x[23] = x[24] = x[25] = 0.0 ; 541 x[26] = x[27] = x[28] = x[29] = x[30] = x[31] = x[32] = x[33] = 0.0 ; 542 x[34] = x[35] = x[36] = x[37] = x[38] = x[39] = x[40] = x[41] = 0.0 ; 543 x[42] = x[43] = x[44] = x[45] = x[46] = x[47] = x[48] = 0.0 ; 544 } 545 /* load in initial (unfactored row) */ 546 nz = ai[i+1] - ai[i]; 547 ajtmpold = aj + ai[i]; 548 v = aa + 49*ai[i]; 549 for (j=0; j<nz; j++) { 550 x = rtmp+49*ajtmpold[j]; 551 x[0] = v[0]; x[1] = v[1]; x[2] = v[2]; x[3] = v[3]; 552 x[4] = v[4]; x[5] = v[5]; x[6] = v[6]; x[7] = v[7]; 553 x[8] = v[8]; x[9] = v[9]; x[10] = v[10]; x[11] = v[11]; 554 x[12] = v[12]; x[13] = v[13]; x[14] = v[14]; x[15] = v[15]; 555 x[16] = v[16]; x[17] = v[17]; x[18] = v[18]; x[19] = v[19]; 556 x[20] = v[20]; x[21] = v[21]; x[22] = v[22]; x[23] = v[23]; 557 x[24] = v[24]; x[25] = v[25]; x[26] = v[26]; x[27] = v[27]; 558 x[28] = v[28]; x[29] = v[29]; x[30] = v[30]; x[31] = v[31]; 559 x[32] = v[32]; x[33] = v[33]; x[34] = v[34]; x[35] = v[35]; 560 x[36] = v[36]; x[37] = v[37]; x[38] = v[38]; x[39] = v[39]; 561 x[40] = v[40]; x[41] = v[41]; x[42] = v[42]; x[43] = v[43]; 562 x[44] = v[44]; x[45] = v[45]; x[46] = v[46]; x[47] = v[47]; 563 x[48] = v[48]; 564 v += 49; 565 } 566 row = *ajtmp++; 567 while (row < i) { 568 pc = rtmp + 49*row; 569 p1 = pc[0]; p2 = pc[1]; p3 = pc[2]; p4 = pc[3]; 570 p5 = pc[4]; p6 = pc[5]; p7 = pc[6]; p8 = pc[7]; 571 p9 = pc[8]; p10 = pc[9]; p11 = pc[10]; p12 = pc[11]; 572 p13 = pc[12]; p14 = pc[13]; p15 = pc[14]; p16 = pc[15]; 573 p17 = pc[16]; p18 = pc[17]; p19 = pc[18]; p20 = pc[19]; 574 p21 = pc[20]; p22 = pc[21]; p23 = pc[22]; p24 = pc[23]; 575 p25 = pc[24]; p26 = pc[25]; p27 = pc[26]; p28 = pc[27]; 576 p29 = pc[28]; p30 = pc[29]; p31 = pc[30]; p32 = pc[31]; 577 p33 = pc[32]; p34 = pc[33]; p35 = pc[34]; p36 = pc[35]; 578 p37 = pc[36]; p38 = pc[37]; p39 = pc[38]; p40 = pc[39]; 579 p41 = pc[40]; p42 = pc[41]; p43 = pc[42]; p44 = pc[43]; 580 p45 = pc[44]; p46 = pc[45]; p47 = pc[46]; p48 = pc[47]; 581 p49 = pc[48]; 582 if (p1 != 0.0 || p2 != 0.0 || p3 != 0.0 || p4 != 0.0 || 583 p5 != 0.0 || p6 != 0.0 || p7 != 0.0 || p8 != 0.0 || 584 p9 != 0.0 || p10 != 0.0 || p11 != 0.0 || p12 != 0.0 || 585 p13 != 0.0 || p14 != 0.0 || p15 != 0.0 || p16 != 0.0 || 586 p17 != 0.0 || p18 != 0.0 || p19 != 0.0 || p20 != 0.0 || 587 p21 != 0.0 || p22 != 0.0 || p23 != 0.0 || p24 != 0.0 || 588 p25 != 0.0 || p26 != 0.0 || p27 != 0.0 || p28 != 0.0 || 589 p29 != 0.0 || p30 != 0.0 || p31 != 0.0 || p32 != 0.0 || 590 p33 != 0.0 || p34 != 0.0 || p35 != 0.0 || p36 != 0.0 || 591 p37 != 0.0 || p38 != 0.0 || p39 != 0.0 || p40 != 0.0 || 592 p41 != 0.0 || p42 != 0.0 || p43 != 0.0 || p44 != 0.0 || 593 p45 != 0.0 || p46 != 0.0 || p47 != 0.0 || p48 != 0.0 || 594 p49 != 0.0) { 595 pv = ba + 49*diag_offset[row]; 596 pj = bj + diag_offset[row] + 1; 597 x1 = pv[0]; x2 = pv[1]; x3 = pv[2]; x4 = pv[3]; 598 x5 = pv[4]; x6 = pv[5]; x7 = pv[6]; x8 = pv[7]; 599 x9 = pv[8]; x10 = pv[9]; x11 = pv[10]; x12 = pv[11]; 600 x13 = pv[12]; x14 = pv[13]; x15 = pv[14]; x16 = pv[15]; 601 x17 = pv[16]; x18 = pv[17]; x19 = pv[18]; x20 = pv[19]; 602 x21 = pv[20]; x22 = pv[21]; x23 = pv[22]; x24 = pv[23]; 603 x25 = pv[24]; x26 = pv[25]; x27 = pv[26]; x28 = pv[27]; 604 x29 = pv[28]; x30 = pv[29]; x31 = pv[30]; x32 = pv[31]; 605 x33 = pv[32]; x34 = pv[33]; x35 = pv[34]; x36 = pv[35]; 606 x37 = pv[36]; x38 = pv[37]; x39 = pv[38]; x40 = pv[39]; 607 x41 = pv[40]; x42 = pv[41]; x43 = pv[42]; x44 = pv[43]; 608 x45 = pv[44]; x46 = pv[45]; x47 = pv[46]; x48 = pv[47]; 609 x49 = pv[48]; 610 pc[0] = m1 = p1*x1 + p8*x2 + p15*x3 + p22*x4 + p29*x5 + p36*x6 + p43*x7; 611 pc[1] = m2 = p2*x1 + p9*x2 + p16*x3 + p23*x4 + p30*x5 + p37*x6 + p44*x7; 612 pc[2] = m3 = p3*x1 + p10*x2 + p17*x3 + p24*x4 + p31*x5 + p38*x6 + p45*x7; 613 pc[3] = m4 = p4*x1 + p11*x2 + p18*x3 + p25*x4 + p32*x5 + p39*x6 + p46*x7; 614 pc[4] = m5 = p5*x1 + p12*x2 + p19*x3 + p26*x4 + p33*x5 + p40*x6 + p47*x7; 615 pc[5] = m6 = p6*x1 + p13*x2 + p20*x3 + p27*x4 + p34*x5 + p41*x6 + p48*x7; 616 pc[6] = m7 = p7*x1 + p14*x2 + p21*x3 + p28*x4 + p35*x5 + p42*x6 + p49*x7; 617 618 pc[7] = m8 = p1*x8 + p8*x9 + p15*x10 + p22*x11 + p29*x12 + p36*x13 + p43*x14; 619 pc[8] = m9 = p2*x8 + p9*x9 + p16*x10 + p23*x11 + p30*x12 + p37*x13 + p44*x14; 620 pc[9] = m10 = p3*x8 + p10*x9 + p17*x10 + p24*x11 + p31*x12 + p38*x13 + p45*x14; 621 pc[10] = m11 = p4*x8 + p11*x9 + p18*x10 + p25*x11 + p32*x12 + p39*x13 + p46*x14; 622 pc[11] = m12 = p5*x8 + p12*x9 + p19*x10 + p26*x11 + p33*x12 + p40*x13 + p47*x14; 623 pc[12] = m13 = p6*x8 + p13*x9 + p20*x10 + p27*x11 + p34*x12 + p41*x13 + p48*x14; 624 pc[13] = m14 = p7*x8 + p14*x9 + p21*x10 + p28*x11 + p35*x12 + p42*x13 + p49*x14; 625 626 pc[14] = m15 = p1*x15 + p8*x16 + p15*x17 + p22*x18 + p29*x19 + p36*x20 + p43*x21; 627 pc[15] = m16 = p2*x15 + p9*x16 + p16*x17 + p23*x18 + p30*x19 + p37*x20 + p44*x21; 628 pc[16] = m17 = p3*x15 + p10*x16 + p17*x17 + p24*x18 + p31*x19 + p38*x20 + p45*x21; 629 pc[17] = m18 = p4*x15 + p11*x16 + p18*x17 + p25*x18 + p32*x19 + p39*x20 + p46*x21; 630 pc[18] = m19 = p5*x15 + p12*x16 + p19*x17 + p26*x18 + p33*x19 + p40*x20 + p47*x21; 631 pc[19] = m20 = p6*x15 + p13*x16 + p20*x17 + p27*x18 + p34*x19 + p41*x20 + p48*x21; 632 pc[20] = m21 = p7*x15 + p14*x16 + p21*x17 + p28*x18 + p35*x19 + p42*x20 + p49*x21; 633 634 pc[21] = m22 = p1*x22 + p8*x23 + p15*x24 + p22*x25 + p29*x26 + p36*x27 + p43*x28; 635 pc[22] = m23 = p2*x22 + p9*x23 + p16*x24 + p23*x25 + p30*x26 + p37*x27 + p44*x28; 636 pc[23] = m24 = p3*x22 + p10*x23 + p17*x24 + p24*x25 + p31*x26 + p38*x27 + p45*x28; 637 pc[24] = m25 = p4*x22 + p11*x23 + p18*x24 + p25*x25 + p32*x26 + p39*x27 + p46*x28; 638 pc[25] = m26 = p5*x22 + p12*x23 + p19*x24 + p26*x25 + p33*x26 + p40*x27 + p47*x28; 639 pc[26] = m27 = p6*x22 + p13*x23 + p20*x24 + p27*x25 + p34*x26 + p41*x27 + p48*x28; 640 pc[27] = m28 = p7*x22 + p14*x23 + p21*x24 + p28*x25 + p35*x26 + p42*x27 + p49*x28; 641 642 pc[28] = m29 = p1*x29 + p8*x30 + p15*x31 + p22*x32 + p29*x33 + p36*x34 + p43*x35; 643 pc[29] = m30 = p2*x29 + p9*x30 + p16*x31 + p23*x32 + p30*x33 + p37*x34 + p44*x35; 644 pc[30] = m31 = p3*x29 + p10*x30 + p17*x31 + p24*x32 + p31*x33 + p38*x34 + p45*x35; 645 pc[31] = m32 = p4*x29 + p11*x30 + p18*x31 + p25*x32 + p32*x33 + p39*x34 + p46*x35; 646 pc[32] = m33 = p5*x29 + p12*x30 + p19*x31 + p26*x32 + p33*x33 + p40*x34 + p47*x35; 647 pc[33] = m34 = p6*x29 + p13*x30 + p20*x31 + p27*x32 + p34*x33 + p41*x34 + p48*x35; 648 pc[34] = m35 = p7*x29 + p14*x30 + p21*x31 + p28*x32 + p35*x33 + p42*x34 + p49*x35; 649 650 pc[35] = m36 = p1*x36 + p8*x37 + p15*x38 + p22*x39 + p29*x40 + p36*x41 + p43*x42; 651 pc[36] = m37 = p2*x36 + p9*x37 + p16*x38 + p23*x39 + p30*x40 + p37*x41 + p44*x42; 652 pc[37] = m38 = p3*x36 + p10*x37 + p17*x38 + p24*x39 + p31*x40 + p38*x41 + p45*x42; 653 pc[38] = m39 = p4*x36 + p11*x37 + p18*x38 + p25*x39 + p32*x40 + p39*x41 + p46*x42; 654 pc[39] = m40 = p5*x36 + p12*x37 + p19*x38 + p26*x39 + p33*x40 + p40*x41 + p47*x42; 655 pc[40] = m41 = p6*x36 + p13*x37 + p20*x38 + p27*x39 + p34*x40 + p41*x41 + p48*x42; 656 pc[41] = m42 = p7*x36 + p14*x37 + p21*x38 + p28*x39 + p35*x40 + p42*x41 + p49*x42; 657 658 pc[42] = m43 = p1*x43 + p8*x44 + p15*x45 + p22*x46 + p29*x47 + p36*x48 + p43*x49; 659 pc[43] = m44 = p2*x43 + p9*x44 + p16*x45 + p23*x46 + p30*x47 + p37*x48 + p44*x49; 660 pc[44] = m45 = p3*x43 + p10*x44 + p17*x45 + p24*x46 + p31*x47 + p38*x48 + p45*x49; 661 pc[45] = m46 = p4*x43 + p11*x44 + p18*x45 + p25*x46 + p32*x47 + p39*x48 + p46*x49; 662 pc[46] = m47 = p5*x43 + p12*x44 + p19*x45 + p26*x46 + p33*x47 + p40*x48 + p47*x49; 663 pc[47] = m48 = p6*x43 + p13*x44 + p20*x45 + p27*x46 + p34*x47 + p41*x48 + p48*x49; 664 pc[48] = m49 = p7*x43 + p14*x44 + p21*x45 + p28*x46 + p35*x47 + p42*x48 + p49*x49; 665 666 nz = bi[row+1] - diag_offset[row] - 1; 667 pv += 49; 668 for (j=0; j<nz; j++) { 669 x1 = pv[0]; x2 = pv[1]; x3 = pv[2]; x4 = pv[3]; 670 x5 = pv[4]; x6 = pv[5]; x7 = pv[6]; x8 = pv[7]; 671 x9 = pv[8]; x10 = pv[9]; x11 = pv[10]; x12 = pv[11]; 672 x13 = pv[12]; x14 = pv[13]; x15 = pv[14]; x16 = pv[15]; 673 x17 = pv[16]; x18 = pv[17]; x19 = pv[18]; x20 = pv[19]; 674 x21 = pv[20]; x22 = pv[21]; x23 = pv[22]; x24 = pv[23]; 675 x25 = pv[24]; x26 = pv[25]; x27 = pv[26]; x28 = pv[27]; 676 x29 = pv[28]; x30 = pv[29]; x31 = pv[30]; x32 = pv[31]; 677 x33 = pv[32]; x34 = pv[33]; x35 = pv[34]; x36 = pv[35]; 678 x37 = pv[36]; x38 = pv[37]; x39 = pv[38]; x40 = pv[39]; 679 x41 = pv[40]; x42 = pv[41]; x43 = pv[42]; x44 = pv[43]; 680 x45 = pv[44]; x46 = pv[45]; x47 = pv[46]; x48 = pv[47]; 681 x49 = pv[48]; 682 x = rtmp + 49*pj[j]; 683 x[0] -= m1*x1 + m8*x2 + m15*x3 + m22*x4 + m29*x5 + m36*x6 + m43*x7; 684 x[1] -= m2*x1 + m9*x2 + m16*x3 + m23*x4 + m30*x5 + m37*x6 + m44*x7; 685 x[2] -= m3*x1 + m10*x2 + m17*x3 + m24*x4 + m31*x5 + m38*x6 + m45*x7; 686 x[3] -= m4*x1 + m11*x2 + m18*x3 + m25*x4 + m32*x5 + m39*x6 + m46*x7; 687 x[4] -= m5*x1 + m12*x2 + m19*x3 + m26*x4 + m33*x5 + m40*x6 + m47*x7; 688 x[5] -= m6*x1 + m13*x2 + m20*x3 + m27*x4 + m34*x5 + m41*x6 + m48*x7; 689 x[6] -= m7*x1 + m14*x2 + m21*x3 + m28*x4 + m35*x5 + m42*x6 + m49*x7; 690 691 x[7] -= m1*x8 + m8*x9 + m15*x10 + m22*x11 + m29*x12 + m36*x13 + m43*x14; 692 x[8] -= m2*x8 + m9*x9 + m16*x10 + m23*x11 + m30*x12 + m37*x13 + m44*x14; 693 x[9] -= m3*x8 + m10*x9 + m17*x10 + m24*x11 + m31*x12 + m38*x13 + m45*x14; 694 x[10] -= m4*x8 + m11*x9 + m18*x10 + m25*x11 + m32*x12 + m39*x13 + m46*x14; 695 x[11] -= m5*x8 + m12*x9 + m19*x10 + m26*x11 + m33*x12 + m40*x13 + m47*x14; 696 x[12] -= m6*x8 + m13*x9 + m20*x10 + m27*x11 + m34*x12 + m41*x13 + m48*x14; 697 x[13] -= m7*x8 + m14*x9 + m21*x10 + m28*x11 + m35*x12 + m42*x13 + m49*x14; 698 699 x[14] -= m1*x15 + m8*x16 + m15*x17 + m22*x18 + m29*x19 + m36*x20 + m43*x21; 700 x[15] -= m2*x15 + m9*x16 + m16*x17 + m23*x18 + m30*x19 + m37*x20 + m44*x21; 701 x[16] -= m3*x15 + m10*x16 + m17*x17 + m24*x18 + m31*x19 + m38*x20 + m45*x21; 702 x[17] -= m4*x15 + m11*x16 + m18*x17 + m25*x18 + m32*x19 + m39*x20 + m46*x21; 703 x[18] -= m5*x15 + m12*x16 + m19*x17 + m26*x18 + m33*x19 + m40*x20 + m47*x21; 704 x[19] -= m6*x15 + m13*x16 + m20*x17 + m27*x18 + m34*x19 + m41*x20 + m48*x21; 705 x[20] -= m7*x15 + m14*x16 + m21*x17 + m28*x18 + m35*x19 + m42*x20 + m49*x21; 706 707 x[21] -= m1*x22 + m8*x23 + m15*x24 + m22*x25 + m29*x26 + m36*x27 + m43*x28; 708 x[22] -= m2*x22 + m9*x23 + m16*x24 + m23*x25 + m30*x26 + m37*x27 + m44*x28; 709 x[23] -= m3*x22 + m10*x23 + m17*x24 + m24*x25 + m31*x26 + m38*x27 + m45*x28; 710 x[24] -= m4*x22 + m11*x23 + m18*x24 + m25*x25 + m32*x26 + m39*x27 + m46*x28; 711 x[25] -= m5*x22 + m12*x23 + m19*x24 + m26*x25 + m33*x26 + m40*x27 + m47*x28; 712 x[26] -= m6*x22 + m13*x23 + m20*x24 + m27*x25 + m34*x26 + m41*x27 + m48*x28; 713 x[27] -= m7*x22 + m14*x23 + m21*x24 + m28*x25 + m35*x26 + m42*x27 + m49*x28; 714 715 x[28] -= m1*x29 + m8*x30 + m15*x31 + m22*x32 + m29*x33 + m36*x34 + m43*x35; 716 x[29] -= m2*x29 + m9*x30 + m16*x31 + m23*x32 + m30*x33 + m37*x34 + m44*x35; 717 x[30] -= m3*x29 + m10*x30 + m17*x31 + m24*x32 + m31*x33 + m38*x34 + m45*x35; 718 x[31] -= m4*x29 + m11*x30 + m18*x31 + m25*x32 + m32*x33 + m39*x34 + m46*x35; 719 x[32] -= m5*x29 + m12*x30 + m19*x31 + m26*x32 + m33*x33 + m40*x34 + m47*x35; 720 x[33] -= m6*x29 + m13*x30 + m20*x31 + m27*x32 + m34*x33 + m41*x34 + m48*x35; 721 x[34] -= m7*x29 + m14*x30 + m21*x31 + m28*x32 + m35*x33 + m42*x34 + m49*x35; 722 723 x[35] -= m1*x36 + m8*x37 + m15*x38 + m22*x39 + m29*x40 + m36*x41 + m43*x42; 724 x[36] -= m2*x36 + m9*x37 + m16*x38 + m23*x39 + m30*x40 + m37*x41 + m44*x42; 725 x[37] -= m3*x36 + m10*x37 + m17*x38 + m24*x39 + m31*x40 + m38*x41 + m45*x42; 726 x[38] -= m4*x36 + m11*x37 + m18*x38 + m25*x39 + m32*x40 + m39*x41 + m46*x42; 727 x[39] -= m5*x36 + m12*x37 + m19*x38 + m26*x39 + m33*x40 + m40*x41 + m47*x42; 728 x[40] -= m6*x36 + m13*x37 + m20*x38 + m27*x39 + m34*x40 + m41*x41 + m48*x42; 729 x[41] -= m7*x36 + m14*x37 + m21*x38 + m28*x39 + m35*x40 + m42*x41 + m49*x42; 730 731 x[42] -= m1*x43 + m8*x44 + m15*x45 + m22*x46 + m29*x47 + m36*x48 + m43*x49; 732 x[43] -= m2*x43 + m9*x44 + m16*x45 + m23*x46 + m30*x47 + m37*x48 + m44*x49; 733 x[44] -= m3*x43 + m10*x44 + m17*x45 + m24*x46 + m31*x47 + m38*x48 + m45*x49; 734 x[45] -= m4*x43 + m11*x44 + m18*x45 + m25*x46 + m32*x47 + m39*x48 + m46*x49; 735 x[46] -= m5*x43 + m12*x44 + m19*x45 + m26*x46 + m33*x47 + m40*x48 + m47*x49; 736 x[47] -= m6*x43 + m13*x44 + m20*x45 + m27*x46 + m34*x47 + m41*x48 + m48*x49; 737 x[48] -= m7*x43 + m14*x44 + m21*x45 + m28*x46 + m35*x47 + m42*x48 + m49*x49; 738 pv += 49; 739 } 740 ierr = PetscLogFlops(686.0*nz+637.0);CHKERRQ(ierr); 741 } 742 row = *ajtmp++; 743 } 744 /* finished row so stick it into b->a */ 745 pv = ba + 49*bi[i]; 746 pj = bj + bi[i]; 747 nz = bi[i+1] - bi[i]; 748 for (j=0; j<nz; j++) { 749 x = rtmp+49*pj[j]; 750 pv[0] = x[0]; pv[1] = x[1]; pv[2] = x[2]; pv[3] = x[3]; 751 pv[4] = x[4]; pv[5] = x[5]; pv[6] = x[6]; pv[7] = x[7]; 752 pv[8] = x[8]; pv[9] = x[9]; pv[10] = x[10]; pv[11] = x[11]; 753 pv[12] = x[12]; pv[13] = x[13]; pv[14] = x[14]; pv[15] = x[15]; 754 pv[16] = x[16]; pv[17] = x[17]; pv[18] = x[18]; pv[19] = x[19]; 755 pv[20] = x[20]; pv[21] = x[21]; pv[22] = x[22]; pv[23] = x[23]; 756 pv[24] = x[24]; pv[25] = x[25]; pv[26] = x[26]; pv[27] = x[27]; 757 pv[28] = x[28]; pv[29] = x[29]; pv[30] = x[30]; pv[31] = x[31]; 758 pv[32] = x[32]; pv[33] = x[33]; pv[34] = x[34]; pv[35] = x[35]; 759 pv[36] = x[36]; pv[37] = x[37]; pv[38] = x[38]; pv[39] = x[39]; 760 pv[40] = x[40]; pv[41] = x[41]; pv[42] = x[42]; pv[43] = x[43]; 761 pv[44] = x[44]; pv[45] = x[45]; pv[46] = x[46]; pv[47] = x[47]; 762 pv[48] = x[48]; 763 pv += 49; 764 } 765 /* invert diagonal block */ 766 w = ba + 49*diag_offset[i]; 767 ierr = Kernel_A_gets_inverse_A_7(w,shift);CHKERRQ(ierr); 768 } 769 770 ierr = PetscFree(rtmp);CHKERRQ(ierr); 771 C->ops->solve = MatSolve_SeqBAIJ_7_NaturalOrdering; 772 C->ops->solvetranspose = MatSolveTranspose_SeqBAIJ_7_NaturalOrdering; 773 C->assembled = PETSC_TRUE; 774 ierr = PetscLogFlops(1.3333*343*b->mbs);CHKERRQ(ierr); /* from inverting diagonal blocks */ 775 PetscFunctionReturn(0); 776 } 777 778 #undef __FUNCT__ 779 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering_newdatastruct" 780 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering_newdatastruct(Mat B,Mat A,const MatFactorInfo *info) 781 { 782 Mat C=B; 783 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)A->data,*b=(Mat_SeqBAIJ *)C->data; 784 PetscErrorCode ierr; 785 PetscInt i,j,k,n=a->mbs,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 786 PetscInt *ajtmp,*bjtmp,nz,nzL,row,*bdiag=b->diag,*pj; 787 MatScalar *rtmp,*pc,*mwork,*v,*pv,*aa=a->a; 788 PetscInt bs2 = a->bs2,flg; 789 PetscReal shift = info->shiftinblocks; 790 791 PetscFunctionBegin; 792 /* generate work space needed by the factorization */ 793 ierr = PetscMalloc((bs2*n+bs2+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 794 mwork = rtmp + bs2*n; 795 ierr = PetscMemzero(rtmp,bs2*n*sizeof(MatScalar));CHKERRQ(ierr); 796 797 for (i=0; i<n; i++){ 798 /* zero rtmp */ 799 /* L part */ 800 nz = bi[i+1] - bi[i]; 801 bjtmp = bj + bi[i]; 802 for (j=0; j<nz; j++){ 803 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 804 } 805 806 /* U part */ 807 nz = bi[2*n-i+1] - bi[2*n-i]; 808 bjtmp = bj + bi[2*n-i]; 809 for (j=0; j<nz; j++){ 810 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 811 } 812 813 /* load in initial (unfactored row) */ 814 nz = ai[i+1] - ai[i]; 815 ajtmp = aj + ai[i]; 816 v = aa + bs2*ai[i]; 817 for (j=0; j<nz; j++) { 818 ierr = PetscMemcpy(rtmp+bs2*ajtmp[j],v+bs2*j,bs2*sizeof(MatScalar));CHKERRQ(ierr); 819 } 820 821 /* elimination */ 822 bjtmp = bj + bi[i]; 823 nzL = bi[i+1] - bi[i]; 824 for(k=0;k < nzL;k++) { 825 row = bjtmp[k]; 826 pc = rtmp + bs2*row; 827 for (flg=0,j=0; j<bs2; j++) { if (pc[j]!=0.0) { flg = 1; break; }} 828 if (flg) { 829 pv = b->a + bs2*bdiag[row]; 830 /* Kernel_A_gets_A_times_B(bs,pc,pv,mwork); *pc = *pc * (*pv); */ 831 ierr = Kernel_A_gets_A_times_B_7(pc,pv,mwork);CHKERRQ(ierr); 832 833 pj = b->j + bi[2*n-row]; /* begining of U(row,:) */ 834 pv = b->a + bs2*bi[2*n-row]; 835 nz = bi[2*n-row+1] - bi[2*n-row] - 1; /* num of entries inU(row,:), excluding diag */ 836 for (j=0; j<nz; j++) { 837 /* Kernel_A_gets_A_minus_B_times_C(bs,rtmp+bs2*pj[j],pc,pv+bs2*j); */ 838 /* rtmp+bs2*pj[j] = rtmp+bs2*pj[j] - (*pc)*(pv+bs2*j) */ 839 v = rtmp + bs2*pj[j]; 840 ierr = Kernel_A_gets_A_minus_B_times_C_7(v,pc,pv);CHKERRQ(ierr); 841 pv += bs2; 842 } 843 ierr = PetscLogFlops(686*nz+637);CHKERRQ(ierr); /* flops = 2*bs^3*nz + 2*bs^3 - bs2) */ 844 } 845 } 846 847 /* finished row so stick it into b->a */ 848 /* L part */ 849 pv = b->a + bs2*bi[i] ; 850 pj = b->j + bi[i] ; 851 nz = bi[i+1] - bi[i]; 852 for (j=0; j<nz; j++) { 853 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 854 } 855 856 /* Mark diagonal and invert diagonal for simplier triangular solves */ 857 pv = b->a + bs2*bdiag[i]; 858 pj = b->j + bdiag[i]; 859 ierr = PetscMemcpy(pv,rtmp+bs2*pj[0],bs2*sizeof(MatScalar));CHKERRQ(ierr); 860 /* ierr = Kernel_A_gets_inverse_A(bs,pv,v_pivots,v_work);CHKERRQ(ierr); */ 861 ierr = Kernel_A_gets_inverse_A_7(pv,shift);CHKERRQ(ierr); 862 863 /* U part */ 864 pv = b->a + bs2*bi[2*n-i]; 865 pj = b->j + bi[2*n-i]; 866 nz = bi[2*n-i+1] - bi[2*n-i] - 1; 867 for (j=0; j<nz; j++){ 868 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 869 } 870 } 871 872 ierr = PetscFree(rtmp);CHKERRQ(ierr); 873 C->assembled = PETSC_TRUE; 874 ierr = PetscLogFlops(1.3333*bs2*n);CHKERRQ(ierr); /* from inverting diagonal blocks */ 875 PetscFunctionReturn(0); 876 } 877 878 #undef __FUNCT__ 879 #define __FUNCT__ "MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering_newdatastruct_v2" 880 PetscErrorCode MatLUFactorNumeric_SeqBAIJ_7_NaturalOrdering_newdatastruct_v2(Mat B,Mat A,const MatFactorInfo *info) 881 { 882 Mat C=B; 883 Mat_SeqBAIJ *a=(Mat_SeqBAIJ*)A->data,*b=(Mat_SeqBAIJ *)C->data; 884 PetscErrorCode ierr; 885 PetscInt i,j,k,n=a->mbs,*ai=a->i,*aj=a->j,*bi=b->i,*bj=b->j; 886 PetscInt *ajtmp,*bjtmp,nz,nzL,row,*bdiag=b->diag,*pj; 887 MatScalar *rtmp,*pc,*mwork,*v,*pv,*aa=a->a; 888 PetscInt bs2 = a->bs2,flg; 889 PetscReal shift = info->shiftinblocks; 890 891 PetscFunctionBegin; 892 /* generate work space needed by the factorization */ 893 ierr = PetscMalloc((bs2*n+bs2+1)*sizeof(MatScalar),&rtmp);CHKERRQ(ierr); 894 mwork = rtmp + bs2*n; 895 ierr = PetscMemzero(rtmp,bs2*n*sizeof(MatScalar));CHKERRQ(ierr); 896 897 for (i=0; i<n; i++){ 898 /* zero rtmp */ 899 /* L part */ 900 nz = bi[i+1] - bi[i]; 901 bjtmp = bj + bi[i]; 902 for (j=0; j<nz; j++){ 903 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 904 } 905 906 /* U part */ 907 nz = bdiag[i] - bdiag[i+1]; 908 bjtmp = bj + bdiag[i+1]+1; 909 for (j=0; j<nz; j++){ 910 ierr = PetscMemzero(rtmp+bs2*bjtmp[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 911 } 912 913 /* load in initial (unfactored row) */ 914 nz = ai[i+1] - ai[i]; 915 ajtmp = aj + ai[i]; 916 v = aa + bs2*ai[i]; 917 for (j=0; j<nz; j++) { 918 ierr = PetscMemcpy(rtmp+bs2*ajtmp[j],v+bs2*j,bs2*sizeof(MatScalar));CHKERRQ(ierr); 919 } 920 921 /* elimination */ 922 bjtmp = bj + bi[i]; 923 nzL = bi[i+1] - bi[i]; 924 for(k=0;k < nzL;k++) { 925 row = bjtmp[k]; 926 pc = rtmp + bs2*row; 927 for (flg=0,j=0; j<bs2; j++) { if (pc[j]!=0.0) { flg = 1; break; }} 928 if (flg) { 929 pv = b->a + bs2*bdiag[row]; 930 /* Kernel_A_gets_A_times_B(bs,pc,pv,mwork); *pc = *pc * (*pv); */ 931 ierr = Kernel_A_gets_A_times_B_7(pc,pv,mwork);CHKERRQ(ierr); 932 933 pj = b->j + bdiag[row+1]+1; /* begining of U(row,:) */ 934 pv = b->a + bs2*(bdiag[row+1]+1); 935 nz = bdiag[row] - bdiag[row+1] - 1; /* num of entries inU(row,:), excluding diag */ 936 for (j=0; j<nz; j++) { 937 /* Kernel_A_gets_A_minus_B_times_C(bs,rtmp+bs2*pj[j],pc,pv+bs2*j); */ 938 /* rtmp+bs2*pj[j] = rtmp+bs2*pj[j] - (*pc)*(pv+bs2*j) */ 939 v = rtmp + bs2*pj[j]; 940 ierr = Kernel_A_gets_A_minus_B_times_C_7(v,pc,pv);CHKERRQ(ierr); 941 pv += bs2; 942 } 943 ierr = PetscLogFlops(686*nz+637);CHKERRQ(ierr); /* flops = 2*bs^3*nz + 2*bs^3 - bs2) */ 944 } 945 } 946 947 /* finished row so stick it into b->a */ 948 /* L part */ 949 pv = b->a + bs2*bi[i] ; 950 pj = b->j + bi[i] ; 951 nz = bi[i+1] - bi[i]; 952 for (j=0; j<nz; j++) { 953 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 954 } 955 956 /* Mark diagonal and invert diagonal for simplier triangular solves */ 957 pv = b->a + bs2*bdiag[i]; 958 pj = b->j + bdiag[i]; 959 ierr = PetscMemcpy(pv,rtmp+bs2*pj[0],bs2*sizeof(MatScalar));CHKERRQ(ierr); 960 /* ierr = Kernel_A_gets_inverse_A(bs,pv,v_pivots,v_work);CHKERRQ(ierr); */ 961 ierr = Kernel_A_gets_inverse_A_7(pv,shift);CHKERRQ(ierr); 962 963 /* U part */ 964 pv = b->a + bs2*(bdiag[i+1]+1); 965 pj = b->j + bdiag[i+1]+1; 966 nz = bdiag[i] - bdiag[i+1] - 1; 967 for (j=0; j<nz; j++){ 968 ierr = PetscMemcpy(pv+bs2*j,rtmp+bs2*pj[j],bs2*sizeof(MatScalar));CHKERRQ(ierr); 969 } 970 } 971 972 ierr = PetscFree(rtmp);CHKERRQ(ierr); 973 C->assembled = PETSC_TRUE; 974 ierr = PetscLogFlops(1.3333*bs2*n);CHKERRQ(ierr); /* from inverting diagonal blocks */ 975 PetscFunctionReturn(0); 976 } 977 978