?trbs2d
?trbs2d
Starts a broadcast along a scope for a trapezoidal matrix.
Syntax
call itrbs2d
(
icontxt
,
scope
,
top
,
uplo
,
diag
,
m
,
n
,
a
,
lda
)
call strbs2d
(
icontxt
,
scope
,
top
,
uplo
,
diag
,
m
,
n
,
a
,
lda
)
call dtrbs2d
(
icontxt
,
scope
,
top
,
uplo
,
diag
,
m
,
n
,
a
,
lda
)
call ctrbs2d
(
icontxt
,
scope
,
top
,
uplo
,
diag
,
m
,
n
,
a
,
lda
)
call ztrbs2d
(
icontxt
,
scope
,
top
,
uplo
,
diag
,
m
,
n
,
a
,
lda
)
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,a,lda
- Describe the matrix to be sent. See Matrix Shapes for details.
Description
This routine starts a broadcast along a scope. All other processes within the scope must call broadcast/receive for the broadcast to proceed. 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).