You need a version of PETSc compiled with 64bit indices, since the message indicates the number of dofs in this case is larger the INT_MAX 2501×3401×1601 = 13617947501
I also suggest you upgrade to a newer version, 3.8.3 is quite old as the error message reports Il giorno mer 27 mag 2020 alle ore 11:50 Pierpaolo Minelli < pierpaolo.mine...@cnr.it> ha scritto: > Hi, > > I am trying to solve a Poisson equation on this grid: > > Nx = 2501 > Ny = 3401 > Nz = 1601 > > I received this error: > > [0]PETSC ERROR: --------------------- Error Message > -------------------------------------------------------------- > [0]PETSC ERROR: Overflow in integer operation: > http://www.mcs.anl.gov/petsc/documentation/faq.html#64-bit-indices > [0]PETSC ERROR: Mesh of 2501 by 3401 by 1 (dof) is too large for 32 bit > indices > [0]PETSC ERROR: See http://www.mcs.anl.gov/petsc/documentation/faq.html > for trouble shooting. > [0]PETSC ERROR: Petsc Release Version 3.8.3, Dec, 09, 2017 > [0]PETSC ERROR: > /marconi_scratch/userexternal/pminelli/PIC3D/2500_3400_1600/./PIC_3D on a > arch-linux2-c-opt named r129c09s02 by pminelli Tu > e May 26 20:16:34 2020 > [0]PETSC ERROR: Configure options > --prefix=/cineca/prod/opt/libraries/petsc/3.8.3/intelmpi--2018--binary > CC=mpiicc FC=mpiifort CXX=mpiicpc > F77=mpiifort F90=mpiifort --with-debugging=0 > --with-blaslapack-dir=/cineca/prod/opt/compilers/intel/pe-xe-2018/binary/mkl > --with-fortran=1 > --with-fortran-interfaces=1 > --with-cmake-dir=/cineca/prod/opt/tools/cmake/3.5.2/none > --with-mpi-dir=/cineca/prod/opt/compilers/intel/pe-xe- > 2018/binary/impi/2018.4.274 --download-scalapack --download-mumps=yes > --download-hypre --download-superlu_dist --download-parmetis --downlo > ad-metis > [0]PETSC ERROR: #1 DMSetUp_DA_3D() line 218 in > /marconi/prod/build/libraries/petsc/3.8.3/intelmpi--2018--binary/BA_WORK/petsc-3.8.3/src/dm/ > impls/da/da3.c > [0]PETSC ERROR: #2 DMSetUp_DA() line 25 in > /marconi/prod/build/libraries/petsc/3.8.3/intelmpi--2018--binary/BA_WORK/petsc-3.8.3/src/dm/impl > s/da/dareg.c > [0]PETSC ERROR: #3 DMSetUp() line 720 in > /marconi/prod/build/libraries/petsc/3.8.3/intelmpi--2018--binary/BA_WORK/petsc-3.8.3/src/dm/interf > ace/dm.c > forrtl: error (76): Abort trap signal > > > I am on an HPC facility and after I loaded PETSC module, I have seen that > it is configured with INTEGER size = 32 > > I solve my problem with these options and it works perfectly with smaller > grids: > > -dm_mat_type hypre -pc_type hypre -pc_hypre_type boomeramg > -pc_hypre_boomeramg_relax_type_all SOR/Jacobi > -pc_hypre_boomeramg_coarsen_type PMIS -pc_hypre_boomeramg_interp_type FF1 > -ksp_type richardson > > Is it possible to overcome this if I ask them to install a version with > INTEGER SIZE = 64? > Alternatively, is it possible to overcome this using intel compiler > options? > > Thanks in advance > > Pierpaolo Minelli -- Stefano
