root / man / man3 / HPL_sdrv.3 @ 1
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| 1 | 1 | equemene | .TH HPL_sdrv 3 "September 10, 2008" "HPL 2.0" "HPL Library Functions" |
|---|---|---|---|
| 2 | 1 | equemene | .SH NAME |
| 3 | 1 | equemene | HPL_sdrv \- Send and receive a message. |
| 4 | 1 | equemene | .SH SYNOPSIS |
| 5 | 1 | equemene | \fB\&#include "hpl.h"\fR |
| 6 | 1 | equemene | |
| 7 | 1 | equemene | \fB\&int\fR |
| 8 | 1 | equemene | \fB\&HPL_sdrv(\fR |
| 9 | 1 | equemene | \fB\&double *\fR |
| 10 | 1 | equemene | \fI\&SBUF\fR, |
| 11 | 1 | equemene | \fB\&int\fR |
| 12 | 1 | equemene | \fI\&SCOUNT\fR, |
| 13 | 1 | equemene | \fB\&int\fR |
| 14 | 1 | equemene | \fI\&STAG\fR, |
| 15 | 1 | equemene | \fB\&double *\fR |
| 16 | 1 | equemene | \fI\&RBUF\fR, |
| 17 | 1 | equemene | \fB\&int\fR |
| 18 | 1 | equemene | \fI\&RCOUNT\fR, |
| 19 | 1 | equemene | \fB\&int\fR |
| 20 | 1 | equemene | \fI\&RTAG\fR, |
| 21 | 1 | equemene | \fB\&int\fR |
| 22 | 1 | equemene | \fI\&PARTNER\fR, |
| 23 | 1 | equemene | \fB\&MPI_Comm\fR |
| 24 | 1 | equemene | \fI\&COMM\fR |
| 25 | 1 | equemene | \fB\&);\fR |
| 26 | 1 | equemene | .SH DESCRIPTION |
| 27 | 1 | equemene | \fB\&HPL_sdrv\fR |
| 28 | 1 | equemene | is a simple wrapper around MPI_Sendrecv. Its main purpose is |
| 29 | 1 | equemene | to allow for some experimentation and tuning of this simple function. |
| 30 | 1 | equemene | Messages of length less than or equal to zero are not sent nor |
| 31 | 1 | equemene | received. Successful completion is indicated by the returned error |
| 32 | 1 | equemene | code HPL_SUCCESS. |
| 33 | 1 | equemene | .SH ARGUMENTS |
| 34 | 1 | equemene | .TP 8 |
| 35 | 1 | equemene | SBUF (local input) double * |
| 36 | 1 | equemene | On entry, SBUF specifies the starting address of buffer to be |
| 37 | 1 | equemene | sent. |
| 38 | 1 | equemene | .TP 8 |
| 39 | 1 | equemene | SCOUNT (local input) int |
| 40 | 1 | equemene | On entry, SCOUNT specifies the number of double precision |
| 41 | 1 | equemene | entries in SBUF. SCOUNT must be at least zero. |
| 42 | 1 | equemene | .TP 8 |
| 43 | 1 | equemene | STAG (local input) int |
| 44 | 1 | equemene | On entry, STAG specifies the message tag to be used for the |
| 45 | 1 | equemene | sending communication operation. |
| 46 | 1 | equemene | .TP 8 |
| 47 | 1 | equemene | RBUF (local output) double * |
| 48 | 1 | equemene | On entry, RBUF specifies the starting address of buffer to be |
| 49 | 1 | equemene | received. |
| 50 | 1 | equemene | .TP 8 |
| 51 | 1 | equemene | RCOUNT (local input) int |
| 52 | 1 | equemene | On entry, RCOUNT specifies the number of double precision |
| 53 | 1 | equemene | entries in RBUF. RCOUNT must be at least zero. |
| 54 | 1 | equemene | .TP 8 |
| 55 | 1 | equemene | RTAG (local input) int |
| 56 | 1 | equemene | On entry, RTAG specifies the message tag to be used for the |
| 57 | 1 | equemene | receiving communication operation. |
| 58 | 1 | equemene | .TP 8 |
| 59 | 1 | equemene | PARTNER (local input) int |
| 60 | 1 | equemene | On entry, PARTNER specifies the rank of the collaborative |
| 61 | 1 | equemene | process in the communication space defined by COMM. |
| 62 | 1 | equemene | .TP 8 |
| 63 | 1 | equemene | COMM (local input) MPI_Comm |
| 64 | 1 | equemene | The MPI communicator identifying the communication space. |
| 65 | 1 | equemene | .SH SEE ALSO |
| 66 | 1 | equemene | .BR HPL_send \ (3), |
| 67 | 1 | equemene | .BR HPL_recv \ (3). |