root / man / man3 / HPL_barrier.3 @ 1
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.TH HPL_barrier 3 "September 10, 2008" "HPL 2.0" "HPL Library Functions" |
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.SH NAME |
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HPL_barrier \- Barrier operation. |
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.SH SYNOPSIS |
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\fB\&#include "hpl.h"\fR |
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|
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\fB\&int\fR |
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\fB\&HPL_barrier(\fR |
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\fB\&MPI_Comm\fR |
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\fI\&COMM\fR |
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\fB\&);\fR |
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.SH DESCRIPTION |
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\fB\&HPL_barrier\fR |
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blocks the caller until all process members have call it. |
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The call returns at any process only after all group members have |
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entered the call. |
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.SH ARGUMENTS |
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.TP 8 |
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COMM (global/local input) MPI_Comm |
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The MPI communicator identifying the process collection. |
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.SH SEE ALSO |
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.BR HPL_broadcast \ (3), |
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.BR HPL_reduce \ (3), |
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.BR HPL_all_reduce \ (3), |
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.BR HPL_min \ (3), |
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.BR HPL_max \ (3), |
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.BR HPL_sum \ (3). |