Developer Reference

  • 2020.2
  • 07/15/2020
  • Public Content
Contents

p?lamve

Copies all or part of one two-dimensional distributed array to another.

Syntax

call pslamve
(
uplo
,
m
,
n
,
a
,
ia
,
ja
,
desca
,
b
,
ib
,
jb
,
descb
,
dwork
)
call pdlamve
(
uplo
,
m
,
n
,
a
,
ia
,
ja
,
desca
,
b
,
ib
,
jb
,
descb
,
dwork
)
Description
p?lamve
copies all or part of a distributed matrix
A
to another distributed matrix
B
. There is no alignment assumptions at all except that
A
and
B
are of the same size.
Optimization Notice
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
This notice covers the following instruction sets: SSE2, SSE4.2, AVX2, AVX-512.
Input Parameters
uplo
(global )
CHARACTER
*1
Specifies the part of the distributed matrix sub(
A
) to be copied:
= 'U': Upper triangular part is copied; the strictly lower triangular part of sub(
A
) is not referenced;
= 'L': Lower triangular part is copied; the strictly upper triangular part of sub(
A
) is not referenced;
Otherwise: All of the matrix sub(
A
) is copied.
m
(global )
INTEGER
The number of rows to be operated on, which is the number of rows of the distributed matrix sub(
A
).
m
0.
n
(global )
INTEGER
The number of columns to be operated on, which is the number of columns of the distributed matrix sub(
A
).
n
0.
a
REAL
for
pslamve
DOUBLE PRECISION
for
pdlamve
(local ) pointer into the local memory to an array of size
(
lld_a
,
LOC
c
(
ja
+
n
-1) )
. This array contains the local pieces of the distributed matrix sub(
A
) to be copied from.
ia
(global )
INTEGER
The row index in the global matrix
A
indicating the first row of sub(
A
).
ja
(global )
INTEGER
The column index in the global matrix
A
indicating the first column of sub(
A
).
desca
(global and local)
INTEGER
array of size
dlen_
.
The array descriptor for the distributed matrix
A
.
ib
(global )
INTEGER
The row index in the global matrix
B
indicating the first row of sub(
B
).
jb
(global )
INTEGER
The column index in the global matrix
B
indicating the first column of sub(
B
).
descb
(global and local)
INTEGER
array of size
dlen_
.
The array descriptor for the distributed matrix
B
.
dwork
REAL
for
pslamve
DOUBLE PRECISION
for
pdlamve
(local workspace) array
If
uplo
= 'U' or