some notes for Pardiso users

some notes for Pardiso users

some notes for Pardiso OOC users:

Recently we received multiple inputs from our customers that 32bit Pardiso Out-of-Core (OOC) solver crashes when solving a big task.
These failures are related to the fact that the memory needed for numerical factorization stage, one of Pardiso stages, exceeded 2Gb.
2 Gb roughly corresponds to the memory that is allocated at the factorization stage for 250*10^6 double nonzero elements.
This gives the current implementation limitation.
Please, be aware that for big input matrices, if at the factorization stage they generate around or more then 250*10^6 nonzero elements Pardiso will crash because of out-of-memory.

1 post / 0 new
For more complete information about compiler optimizations, see our Optimization Notice.