[petsc-dev] -vecscatter_window

Jed Brown jed at 59A2.org
Sat Mar 27 14:55:01 CDT 2010

I fixed this up before the release (6ae96dca2adc), but I didn't address
this point.  Why is the second MPI_Win_fence called immediately after
the MPI_Put in VecScatterBegin.  I would expect better latency tolerance
if this was called in VecScatterEnd, as in the attached patch.  Is this
patch somehow incorrect?


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