next up previous contents index
Next: PxTRMR2D Up: PxGEMR2D Previous: Purpose

Arguments

M
(global input) INTEGER
On entry, M specifies the number of rows of the (sub)matrix A to be copied. M tex2html_wrap_inline14966 0.

N
(global input) INTEGER
On entry, N specifies the number of columns of the (sub)matrix A to be copied. N tex2html_wrap_inline14966 zero.

A
(local input) REAL/COMPLEX/INTEGER array, dimension (LLD_A,LOCc(JA+N-1))
On entry, the source matrix.

IA
(global input) INTEGER
On entry,the global row index of the beginning of the (sub)matrix of A to copy.
1 tex2html_wrap_inline14970 IA tex2html_wrap_inline14970 M_A - M + 1.

JA
(global input) INTEGER
On entry,the global column index of the beginning of the (sub)matrix of A to copy.
1 tex2html_wrap_inline14970 JA tex2html_wrap_inline14970 N_A - N + 1.

DESCA
(global and local input) INTEGER array, dimension (DLEN_)
The array descriptor for the distributed matrix A.
Only DESCA(DTYPE_)=1 is supported, and thus DLEN_ = 9.
If the calling process is not part of the context of A, then DESCA(CTXT_) must be equal to -1.

B
(local output) REAL/COMPLEX/INTEGER array, dimension (LLD_B,LOCc(JB+N-1))
On exit, the defined (sub)matrix is overwritten by the indicated (sub)matrix from A.

IB
(global input) INTEGER
On entry, the global row index of the beginning of the (sub)matrix of B that will be overwritten.
1 tex2html_wrap_inline14970 IB tex2html_wrap_inline14970 M_B - M + 1.

JB
(global input) INTEGER
On entry, the global column index of the beginning of the submatrix of B that will be overwritten.
1 tex2html_wrap_inline14970 JB tex2html_wrap_inline14970 N_B - N + 1.

DESCB
(global and local input) INTEGER array, dimension (DLEN_)
The array descriptor for the distributed matrix B.
Only DESCB(DTYPE_)=1 is supported, and thus DLEN_ = 9.
If the calling process is not part of the context of B, then DESCB(CTXT_) must be equal to -1.

ICTXT
(global input) INTEGER
The context encompassing at least the union of all processes in context A and context B. All processes in the context ICTXT must call this routine, even if they do not own a piece of either matrix.


next up previous contents index
Next: PxTRMR2D Up: PxGEMR2D Previous: Purpose

Susan Blackford
Tue May 13 09:21:01 EDT 1997