1cb512458SBarry Smith #ifndef lint 2*a5a9c739SBarry Smith static char vcid[] = "$Id: gcreate.c,v 1.6 1995/03/06 04:00:47 bsmith Exp bsmith $"; 3cb512458SBarry Smith #endif 47807a1faSBarry Smith 57807a1faSBarry Smith #include "sys.h" 67807a1faSBarry Smith #include "options.h" 77807a1faSBarry Smith #include "sysio.h" 87807a1faSBarry Smith #include "mat.h" 97807a1faSBarry Smith 107807a1faSBarry Smith /*@C 117807a1faSBarry Smith MatCreateInitialMatrix - Reads from command line to determine 12d6dfbf8fSBarry Smith what type of matrix to create. Also uses MPI matrices if 13d6dfbf8fSBarry Smith number processors in MPI_COMM_WORLD greater then one. 147807a1faSBarry Smith 157807a1faSBarry Smith Input Parameters: 167807a1faSBarry Smith . m,n - matrix dimensions 177807a1faSBarry Smith 187807a1faSBarry Smith Output Parameter: 197807a1faSBarry Smith . V - location to stash resulting matrix. 207807a1faSBarry Smith @*/ 217807a1faSBarry Smith int MatCreateInitialMatrix(int m,int n,Mat *V) 227807a1faSBarry Smith { 23d6dfbf8fSBarry Smith int numtid; 24d6dfbf8fSBarry Smith MPI_Comm_size(MPI_COMM_WORLD,&numtid); 25d6dfbf8fSBarry Smith if (OptionsHasName(0,0,"-dense_mat")) { 267807a1faSBarry Smith return MatCreateSequentialDense(m,n,V); 277807a1faSBarry Smith } 28*a5a9c739SBarry Smith if (numtid > 1 || OptionsHasName(0,0,"-mpi_objects")) { 29d6dfbf8fSBarry Smith return MatCreateMPIAIJ(MPI_COMM_WORLD,-1,-1,m,n,5,0,0,0,V); 30d6dfbf8fSBarry Smith } 3111d228e4SBarry Smith return MatCreateSequentialAIJ(m,n,10,0,V); 327807a1faSBarry Smith } 337807a1faSBarry Smith 34