cleanup for MPIAIJ routines

use struct MatEntry such that (row,col,valaddr) are stored contigously for efficient accessing

cleanup

MatFDColoringApply_MPIAIJ() works for htype wp and ds

use local column indices in columnsforrow, thus rm vscaleforrow

trivial cleanup

initial cleanup of MatFDColoringApply_MPIAIJ()

small cleanup of MatFDColoringCreate_MPIAIJ_new()

small cleanup

implement MatFDColoringCreate_MPIAIJ_new() which reduces 50%+ time :-)

implement MatFDColoringCreate_MPIAIJ_new()

cleanup MatFDColoringApply_SeqBAIJ

optimize MatFDColoringApply_SeqBAIJ() by inserting block column values to J

insert a block values into J

using w2s vectors instead of w2 - intend to optimize MatFDColoringApply_SeqBAIJ

rm impl of STOREVALS

implement version of STOREVALS for MatFDColoringApply_SeqBAIJ, but it does not improve the version of !STOREVALS

add MatFDColoringApply_SeqBAIJ

mv MatFDColoringApply_SeqAIJ() from aij.c to fdaij.c; rm MatFDColoringApply_SeqAIJ_old; MatFDColoringCreate_SeqAIJ_den2sp() supports SeqBAIJ matrix.

fix memory leak

cleanup

cleanup MatFDColoringCrete and MatFDColoringApply for SeqAIJ

experimenting different ways of storing row, col and den2sp -- rowcolden2sp3 gives the best performance

add timer for profiling segments of MatFDColoringApply_SeqAIJ

cleanup and optimize