Developer Reference for Intel® oneAPI Math Kernel Library for Fortran

ID 766686
Date 3/31/2023
Public

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?gerv2d

Receives a message from the process into the general rectangular matrix.

Syntax

call igerv2d( icontxt, m, n, a, lda, rsrc, csrc )

call sgerv2d( icontxt, m, n, a, lda, rsrc, csrc )

call dgerv2d( icontxt, m, n, a, lda, rsrc, csrc )

call cgerv2d( icontxt, m, n, a, lda, rsrc, csrc )

call zgerv2d( icontxt, m, n, a, lda, rsrc, csrc )

Input Parameters

icontxt

INTEGER. Integer handle that indicates the context.

m, n, lda

Describe the matrix to be sent. See Matrix Shapes for details.

rsrc

INTEGER.

The process row coordinate of the source of the message.

csrc

INTEGER.

The process column coordinate of the source of the message.

Output Parameters

a

An array of dimension (lda,n) to receive the incoming message into.

Description

This routine receives a message from process {RSRC, CSRC} into the general rectangular matrix A. This routine is globally-blocking, that is, return from the routine indicates that the message has been received into A.