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Type_create_darray with mix of BLOCK/CYCLIC #3672

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Merged
merged 1 commit into from
Jun 8, 2017
Merged

Type_create_darray with mix of BLOCK/CYCLIC #3672

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17 changes: 16 additions & 1 deletion ompi/datatype/ompi_datatype_create_darray.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
* Copyright (c) 2010 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* Copyright (c) 2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
Expand All @@ -35,7 +36,7 @@ block(const int *gsize_array, int dim, int ndims, int nprocs,
ptrdiff_t *st_offset)
{
int blksize, global_size, mysize, i, j, rc, start_loop, step;
ptrdiff_t stride;
ptrdiff_t stride, disps[2];

global_size = gsize_array[dim];

Expand Down Expand Up @@ -71,6 +72,20 @@ block(const int *gsize_array, int dim, int ndims, int nprocs,
/* in terms of no. of elements of type oldtype in this dimension */
if (mysize == 0) *st_offset = 0;

/* need to set the UB for block-cyclic to work */
disps[0] = 0; disps[1] = orig_extent;
if (order == MPI_ORDER_FORTRAN) {
for(i=0; i<=dim; i++) {
disps[1] *= gsize_array[i];
}
} else {
for(i=ndims-1; i>=dim; i--) {
disps[1] *= gsize_array[i];
}
}
rc = opal_datatype_resize( &(*type_new)->super, disps[0], disps[1] );
if (OMPI_SUCCESS != rc) return rc;

return OMPI_SUCCESS;
}

Expand Down