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<TITLE>第四章: 集合通信</TITLE>
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<TD align=left><B><FONT SIZE=+1>4.3 栅障同步(Barrier Synchronization) </FONT></B></TD>
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<PRE>MPI_BARRIER(comm)
IN comm 通信子(句柄)</PRE>
<PRE>int MPI_Barrier(MPI_Comm comm)
MPI_BARRIER(COMM, IERROR)
INTEGER COMM, IERROR</PRE>
<P>MPI_BARRIER阻塞所有的调用者直到所有的组成员都调用了它,仅当所有的组成员都进入了这个调用后,各个进程中这个调用才可以返回.
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<TD align=left>Copyright: NPACT </TD>
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