Actual source code: matio.c
1: #include <petscviewer.h>
2: #include <petsc/private/matimpl.h>
4: PetscErrorCode MatView_Binary_BlockSizes(Mat mat,PetscViewer viewer)
5: {
6: FILE *info;
7: PetscMPIInt rank;
8: PetscInt rbs,cbs;
10: MatGetBlockSizes(mat,&rbs,&cbs);
11: PetscViewerBinaryGetInfoPointer(viewer,&info);
12: MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);
13: if (rank == 0 && info) {
14: if (rbs != cbs) PetscFPrintf(PETSC_COMM_SELF,info,"-matload_block_size %" PetscInt_FMT ",%" PetscInt_FMT "\n",rbs,cbs);
15: else PetscFPrintf(PETSC_COMM_SELF,info,"-matload_block_size %" PetscInt_FMT "\n",rbs);
16: }
17: return 0;
18: }
20: PetscErrorCode MatLoad_Binary_BlockSizes(Mat mat,PetscViewer viewer)
21: {
22: PetscInt rbs,cbs,bs[2],n = 2;
23: PetscBool set;
26: /* get current block sizes */
27: MatGetBlockSizes(mat,&rbs,&cbs);
28: bs[0] = rbs; bs[1] = cbs;
29: /* get block sizes from the options database */
30: PetscOptionsBegin(PetscObjectComm((PetscObject)viewer),NULL,"Options for loading matrix block size","Mat");
31: PetscOptionsIntArray("-matload_block_size","Set the block size used to store the matrix","MatLoad",bs,&n,&set);
32: PetscOptionsEnd();
33: if (!set) return 0;
34: if (n == 1) bs[1] = bs[0]; /* to support -matload_block_size <bs> */
35: /* set matrix block sizes */
36: if (bs[0] > 0) rbs = bs[0];
37: if (bs[1] > 0) cbs = bs[1];
38: MatSetBlockSizes(mat,rbs,cbs);
39: return 0;
40: }