FEAP User Forum

FEAP => Parallel FEAP => Topic started by: Arthur on October 10, 2013, 07:54:49 PM

Title: Solve tang,,1 with single processor when using PETSc
Post by: Arthur on October 10, 2013, 07:54:49 PM

Hi Everyone,

I'm trying to do some comparisons above parallel solvers using perfeap and PETSc. It works well when using 2 or more processors. But when I input following commands, it failed. Is there any method to solve contact problem (penalty method) with single processor when using PETSc? Thanks.

batch
graph node 1
outdomains
end

mpiexec -n 1 ./feap

Title: Re: Solve tang,,1 with single processor when using PETSc
Post by: Prof. S. Govindjee on October 13, 2013, 11:29:23 AM

Your partitioning is fine.  When you run the code make sure that it references the "partitioned" Ixxxx_0001 as the input file and not you unpartitioned Ixxxx.

Title: Re: Solve tang,,1 with single processor when using PETSc
Post by: Arthur on October 15, 2013, 06:32:16 AM

Thank you, Prof. S. Govindjee. I tried to use Ixxxx_0001 as input file, it worked. But when I used same method to solve contact problem(penalty method), it reported plenty of " [ 0 ] PETSC ERROR: ***" before solving "tang,,1". The version of FEAP 8.4 I'm using is an unreleased version (June 4). I don't know if it's the reason.

Quote from: Prof. S. Govindjee on October 13, 2013, 11:29:23 AM

Your partitioning is fine.  When you run the code make sure that it references the "partitioned" Ixxxx_0001 as the input file and not you unpartitioned Ixxxx.