void PETSC_STDCALL dagetownershipranges_(DA *da,PetscInt lx[],PetscInt ly[],PetscInt lz[],PetscErrorCode *ierr) { const PetscInt *gx,*gy,*gz; PetscInt M,N,P,i; CHKFORTRANNULLINTEGER(lx); CHKFORTRANNULLINTEGER(ly); CHKFORTRANNULLINTEGER(lz); *ierr = DAGetInfo(*da,0,0,0,0,&M,&N,&P,0,0,0,0);if (*ierr) return; *ierr = DAGetOwnershipRanges(*da,&gx,&gy,&gz);if (*ierr) return; if (lx) {for (i=0; i<M; i++) {lx[i] = gx[i];}} if (ly) {for (i=0; i<N; i++) {ly[i] = gy[i];}} if (lz) {for (i=0; i<P; i++) {lz[i] = gz[i];}} }
PetscErrorCode vizGA2DA() { PetscErrorCode ierr; int rank; MPI_Comm_rank(PETSC_COMM_WORLD,&rank); int d1 = 40, d2 = 50; DA da; Vec vec; const PetscInt *lx, *ly, *lz; PetscInt m,n,p; DALocalInfo info; ierr = DACreate2d(PETSC_COMM_WORLD,DA_NONPERIODIC,DA_STENCIL_STAR, d1,d2,PETSC_DECIDE,PETSC_DECIDE,1,1,0,0, &da); CHKERRQ(ierr); ierr = DACreateGlobalVector(da, &vec); CHKERRQ(ierr); ierr = DAGetOwnershipRanges(da, &lx, &ly, &lz); CHKERRQ(ierr); ierr = DAGetLocalInfo(da,&info); CHKERRQ(ierr); ierr = DAGetInfo(da,0,0,0,0,&m,&n,&p,0,0,0,0); CHKERRQ(ierr); /**/ ierr = DAView(da, PETSC_VIEWER_STDOUT_WORLD); CHKERRQ(ierr); for (int i = 0; i < m; ++i) { PetscPrintf(PETSC_COMM_WORLD,"%d\tlx: %d\n",i,lx[i]); } for (int i = 0; i < n; ++i) { PetscPrintf(PETSC_COMM_WORLD,"%d\tly: %d\n",i,ly[i]); } /**/ int ga = GA_Create_handle(); int ndim = 2; int dims[2] = {d2,d1}; GA_Set_data(ga,2,dims,MT_DBL); int *map; PetscMalloc( sizeof(int)*(m+n), &map); map[0] = 0; for( int i = 1; i < n; i++ ) { map[i] = ly[i-1] + map[i-1]; } map[n] = 0; for( int i = n+1; i < m+n; i++ ) { map[i] = lx[i-n-1] + map[i-1]; } /* correct ordering, but nodeid's dont line up with mpi rank for petsc's da * DA: +---+---+ GA: +---+---+ * +-2-+-3-+ +-1-+-3-+ * +---+---+ +---+---+ * +-0-+-1-+ +-0-+-2-+ * +---+---+ +---+---+ int *map; PetscMalloc( sizeof(int)*(m+n), &map); map[0] = 0; for( int i = 1; i < m; i++ ) { map[i] = lx[i] + map[i-1]; } map[m] = 0; for( int i = m+1; i < m+n; i++ ) { map[i] = ly[i-m] + map[i-1]; } */ int block[2] = {n,m}; GA_Set_irreg_distr(ga,map,block); ierr = GA_Allocate( ga ); if( !ierr ) GA_Error("\n\n\nga allocaltion failed\n\n",ierr); if( !ga ) GA_Error("\n\n\n ga null \n\n",ierr); if( rank != GA_Nodeid() ) GA_Error("MPI rank does not match GA_Nodeid()",1); GA_Print_distribution(ga); int lo[2], hi[2]; NGA_Distribution(ga,rank,lo,hi); if( lo[1] != info.xs || hi[1] != info.xs+info.xm-1 || lo[0] != info.ys || hi[0] != info.ys+info.ym-1 ) { PetscSynchronizedPrintf(PETSC_COMM_SELF,"[%d] lo:(%2d,%2d) hi:(%2d,%2d) \t DA: (%2d,%2d), (%2d, %2d)\n", rank, lo[1], lo[0], hi[1], hi[0], info.xs, info.ys, info.xs+info.xm-1, info.ys+info.ym-1); } PetscBarrier(0); PetscSynchronizedFlush(PETSC_COMM_WORLD); AO ao; DAGetAO(da,&ao); if( rank == 0 ) { int *idx, len = d1*d2; PetscReal *val; PetscMalloc(sizeof(PetscReal)*len, &val); PetscMalloc(sizeof(int)*len, &idx); for (int j = 0; j < d2; ++j) { for (int i = 0; i < d1; ++i) { idx[i + d1*j] = i + d1*j; val[i + d1*j] = i + d1*j; } } AOApplicationToPetsc(ao,len,idx); VecSetValues(vec,len,idx,val,INSERT_VALUES); int a[2], b[2],ld[1]={0}; double c = 0; for (int j = 0; j < d2; ++j) { for (int i = 0; i < d1; ++i) { a[0] = j; a[1] = i; // printf("%5.0f ",c); NGA_Put(ga,a,a,&c,ld); c++; } } } // GA_Print(ga); VecAssemblyBegin(vec); VecAssemblyEnd(vec); int ld; double *ptr; NGA_Access(ga,lo,hi,&ptr,&ld); PetscReal **d; int c=0; ierr = DAVecGetArray(da,vec,&d); CHKERRQ(ierr); for (int j = info.ys; j < info.ys+info.ym; ++j) { for (int i = info.xs; i < info.xs+info.xm; ++i) { if( d[j][i] != ptr[(i-info.xs)+ld*(j-info.ys)] ) GA_Error("DA array is not equal to GA array",1); // printf("%d (%d,%d):\t%3.0f\t%3.0f\n", c, i, j, d[j][i], ptr[(i-info.xs)+ld*(j-info.ys)]); c++; } } ierr = DAVecRestoreArray(da,vec,&d); CHKERRQ(ierr); c=0; PetscReal *v; int start, end; VecGetOwnershipRange(vec, &start, &end); VecGetArray( vec, &v ); for( int i = start; i < end; i++) { // printf("%d:\t%3.0f\t%3.0f\t%s\n", start, v[i-start], ptr[i-start], (v[i-start]-ptr[i-start]==0?"":"NO") ); } VecRestoreArray( vec, &v ); NGA_Release_update(ga,lo,hi); Vec gada; VecCreateMPIWithArray(((PetscObject)da)->comm,da->Nlocal,PETSC_DETERMINE,ptr,&gada); VecView(gada,PETSC_VIEWER_STDOUT_SELF); GA_Destroy(ga); ierr = VecDestroy(vec); CHKERRQ(ierr); ierr = DADestroy(da); CHKERRQ(ierr); PetscFunctionReturn(0); }