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Pradeep,
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<div>This file is used only when compiling with mpi turned off.</div>
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<div id="divRpF939298" style="direction: ltr;"><font face="Tahoma" size="2" color="#000000"><b>From:</b> nek5000-users-bounces@lists.mcs.anl.gov [nek5000-users-bounces@lists.mcs.anl.gov] on behalf of nek5000-users@lists.mcs.anl.gov [nek5000-users@lists.mcs.anl.gov]<br>
<b>Sent:</b> Wednesday, January 07, 2015 6:02 PM<br>
<b>To:</b> Nek5000<br>
<b>Subject:</b> [Nek5000-users] Nek MPI subroutine<br>
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<div dir="ltr">Hello,
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<div>I don't understand the following subroutine in the Nek mpi_dummy.f file:</div>
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<div> subroutine mpi_comm_rank ( comm, me, ierror )</div>
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<div> implicit none</div>
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<div> integer comm</div>
<div> integer ierror</div>
<div> integer me</div>
<div> integer MPI_FAILURE</div>
<div> parameter ( MPI_FAILURE = 1 )</div>
<div> integer MPI_SUCCESS</div>
<div> parameter ( MPI_SUCCESS = 0 )</div>
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<div> ierror = MPI_SUCCESS</div>
<div> me = 0</div>
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<div> return</div>
<div> end</div>
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<div style="">This will always return one. How does this give the rank of the process then? Can someone please explain the reason for this function?</div>
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<div style="">Thanks,</div>
<div style="">Pradeep</div>
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