[petsc-users] Memory requirements in SUPERLU_DIST

2014-09-23 Thread Zin Lin
Hi I am solving a frequency domain Maxwell problem for a dielectric structure of size 90x90x50, (the total matrix size is (90x90x50x6)^2 which includes the three vector components as well as real and imaginary parts.) I am using SUPERLU_DIST for the direct solver with the following options

Re: [petsc-users] Memory requirements in SUPERLU_DIST

2014-09-23 Thread Barry Smith
This is something you better ask Sherri about. She’s the one who wrote and understands SuperLU_DIST Barry On Sep 23, 2014, at 7:00 PM, Zin Lin zinlin.zin...@gmail.com wrote: Hi I am solving a frequency domain Maxwell problem for a dielectric structure of size 90x90x50, (the total

Re: [petsc-users] Memory requirements in SUPERLU_DIST

2014-09-23 Thread Jed Brown
Zin Lin zinlin.zin...@gmail.com writes: What I don't understand is why memory per core matters rather than the total memory? If the work space is distributed across the processors, shouldn't it work as long as I choose a sufficient number of smaller-memory cores? METIS is a serial