Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 0.10
  • 10/21/2020
  • Public Content
Contents

?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
.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804