<div dir="ltr">Dear <span class="" style="background-color:yellow"><span class="">MPICH</span></span> forum.<div>I created an endless <span class="" style="background-color:yellow"><span class="">MPI</span></span> program.</div>
<div>In this program each process calls <span class="" style="background-color:yellow"><span class="">MPI</span></span>_<span class="">Recv</span> from other process, w/o any <span class="" style="background-color:yellow"><span class="">MPI</span></span>_Send.</div>
<div>When I execute this <span class="" style="background-color:yellow">program</span> I see each process takes ~ 100% CPU core.</div>
<div>Is this behavior (I suppose polling) is normal?</div><div>May I reduce <span class="" style="background-color:yellow">MPI_Recv</span> CPU penalty?</div><div><br></div><div>Regards,</div><div><span class="" style="background-color:yellow"><span class="">Anatoly</span></span>.</div>
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