[petsc-dev] Fwd: no petsc on Edison

[Hong]

Mark:

>
>> > > [2998]PETSC ERROR: #2 PetscTableCreate() line 52 in
>> > > /global/u2/m/madams/petsc_install/petsc/src/sys/utils/ctable.c
>> > > [2998]PETSC ERROR: #3 MatTransposeMatMultSymbolic_MPIAIJ_MPIAIJ()
>> line 1691
>>
>
 MatTransposeMatMult() tends to use much larger ctable than MatMatMult.
Is your matrix symmetric? If so, MatMatMult() will use smaller ctable and
require less communication.

Hong
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