[petsc-users] A really huge hash is being requested.

[Lucas Clemente Vella]

Hi.

I am trying to assemble a big matrix, but PETSc fail with the following
message (this was executed with 5 processes):

[0]PETSC ERROR: --------------------- Error Message
--------------------------------------------------------------
[0]PETSC ERROR: Argument out of range
[0]PETSC ERROR: A really huge hash is being requested.. cannot process:
3418625
[0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html for
trouble shooting.
[0]PETSC ERROR: Petsc Release Version 3.7.5, Jan, 01, 2017
[0]PETSC ERROR: /home/lvella/src/cyberex/cyberex-3d on a x86_64 named
r1i1n4 by lvella Thu Oct  5 19:31:29 2017
[0]PETSC ERROR: Configure options
--prefix=/opt/sw/petsc/3.7.5-gcc4.9.1-openmpi1.8.4 --PETSC_ARCH=x86_64
--with-mpi=1 --with-mpi-dir=/opt/sw/openmpi/1.8.4-gcc4.9.1 --with-hwloc=1
--with-hwloc-dir=/opt/sw/hwloc/1.6.1 --with-hdf5=1 --with-h
df5-dir=/opt/sw/hdf5/1.8.14-gcc4.9.1-openmpi1.8.4 F77=mpif77 F90=mpif90
--with-shared-libraries=0 --download-f2cblaslapack=1 --download-hdf5=0
--with-clanguage=C --with-c++-support --with-x=0 --with-debubbing=yes
--download-hypre=1
[0]PETSC ERROR: #1 PetscTableCreateHashSize() line 28 in
/home/rsaramago/build-pkgs/petsc-3.7.5/src/sys/utils/ctable.c
[0]PETSC ERROR:
------------------------------------------------------------------------

What caused the problem and how to handle it?

Thanks,

--
Lucas Clemente Vella
lvella at gmail.com
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