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<TITLE>HPL_recv HPL 2.0 Library Functions September 10, 2008</TITLE> |
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<H1>Name</H1> |
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<B>HPL_recv</B> Receive a message. |
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<H1>Synopsis</H1> |
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<CODE>#include "hpl.h"</CODE><BR><BR> |
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<CODE>int</CODE> |
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<CODE>HPL_recv(</CODE> |
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<CODE>double *</CODE> |
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<CODE>RBUF</CODE>, |
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<CODE>int</CODE> |
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<CODE>RCOUNT</CODE>, |
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<CODE>int</CODE> |
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<CODE>SRC</CODE>, |
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<CODE>int</CODE> |
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<CODE>RTAG</CODE>, |
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<CODE>MPI_Comm</CODE> |
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<CODE>COMM</CODE> |
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<CODE>);</CODE> |
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<H1>Description</H1> |
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<B>HPL_recv</B> |
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is a simple wrapper around MPI_Recv. Its main purpose is |
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to allow for some experimentation / tuning of this simple routine. |
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Successful completion is indicated by the returned error code |
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HPL_SUCCESS. In the case of messages of length less than or equal to |
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zero, this function returns immediately. |
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<H1>Arguments</H1> |
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<PRE>
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RBUF (local output) double * |
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On entry, RBUF specifies the starting address of buffer to be |
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received. |
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RCOUNT (local input) int |
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On entry, RCOUNT specifies the number of double precision |
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entries in RBUF. RCOUNT must be at least zero. |
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SRC (local input) int |
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On entry, SRC specifies the rank of the sending process in |
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the communication space defined by COMM. |
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RTAG (local input) int |
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On entry, STAG specifies the message tag to be used for this |
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communication operation. |
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COMM (local input) MPI_Comm |
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The MPI communicator identifying the communication space. |
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<H1>See Also</H1> |
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<A HREF="HPL_send.html">HPL_send</A>, |
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<A HREF="HPL_sendrecv.html">HPL_sendrecv</A>. |
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