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Subject: Re: [OMPI users] Windows: MPI_Allreduce() crashes when using MPI_DOUBLE_PRECISION
From: hi (hiralsmaillist_at_[hidden])
Date: 2011-05-09 09:57:05


Hi Jeff,

Test program works fine; but you can notice the difference between the
callstack images of test program and of my actual application.

In test program it calls mca_coll_self_allreduce_intra while in my
application it calls mca_coll_basic_allreduce_intra.
So I want to know which parameter or setting makes call to
mca_coll_basic_allreduce_intra compared to
mca_coll_self_allreduce.intra; if you can comment on this would be
helpful.

Just for more information:
op->o_func.intrinsic.fns[27] points to 0 when using
MPI_Allreduce(...,...,...,MPI_DOUBLE_PRECISION, MPI_SUM,...,...)

Thank you.
-Hiral