Visible to Intel only — GUID: GUID-90BBC48B-5223-41C9-A408-66F20325A778
Visible to Intel only — GUID: GUID-90BBC48B-5223-41C9-A408-66F20325A778
?trbr2d
Receives and participates in a broadcast along a scope for a trapezoidal matrix.
Syntax
call itrbr2d( icontxt, scope, top, uplo, diag, m, n, a, lda, rsrc, csrc )
call strbr2d( icontxt, scope, top, uplo, diag, m, n, a, lda, rsrc, csrc )
call dtrbr2d( icontxt, scope, top, uplo, diag, m, n, a, lda, rsrc, csrc )
call ctrbr2d( icontxt, scope, top, uplo, diag, m, n, a, lda, rsrc, csrc )
call ztrbr2d( icontxt, scope, top, uplo, diag, m, n, a, lda, rsrc, csrc )
Input Parameters
icontxt |
INTEGER. Integer handle that indicates the context. |
scope |
CHARACTER*1. Indicates what scope the broadcast should proceed on. Limited to 'Row', 'Column', or 'All'. |
top |
CHARACTER*1. Indicates the communication pattern to use for the broadcast. |
uplo, diag, m, n, lda |
Describe the matrix to be sent. See Matrix Shapes for details. |
rsrc |
INTEGER. The process row coordinate of the process that called broadcast/send. |
csrc |
INTEGER. The process column coordinate of the process that called broadcast/send. |
Output Parameters
a |
An array of dimension (lda,n) to receive the incoming message into. |
Description
This routine receives and participates in a broadcast along a scope. At the end of a broadcast, all processes within the scope will possess the data in the trapezoidal matrix A. Broadcasts may be globally-blocking. This means no process is guaranteed to return from a broadcast until all processes in the scope have called the appropriate routine (broadcast/send or broadcast/receive).