Problem with Large Model Solution

41

I’ve used the last version that you previously mentioned.
Reading the “read me” in zip file I saw this: maybe this is the point?

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All the best
Stefano

42

i’m not sure why you are having problems. i just downloaded the files from the ccx website and they work for me. i have these environment variables set:

MKL_INTERFACE_LAYER=LP64
MKL_THREADING_LAYER=INTEL
OMP_NUM_THREADS=(Set to desired number of cores)
OPENBLAS_NUM_THREADS=1
PASTIX_MIXED_PRECISION=1

43

Finally I solved it with PARDISO!
I set your Environmental Variables and now PARDISO with ccx_dynamic (off course) solve my analysis!
However now if I try to solve with PASTIX, the program automatically recall PARDISO solver yet.
Then if I use ccx_dynamic, PARDISO will be used, while if I use ccx_static he give me the previous error message (PARDISO not linked).

Many thanks for the patience.

All the best,
S.Milani

1 Like
44

that’s correct on ccx_static.exe. it won’t run pardiso. only the ccx_dynamic.exe file will.

to switch between compilers you need to reference the ccx manual. in the inp file i provided, look for the following line near the bottom of the file:

*STATIC,SOLVER=PARDISO

you can either remove the SOLVER= option (that should default to PASTIX) or you can explicitly call one of three solvers:

*STATIC
*STATIC,SOLVER=PASTIX
*STATIC,SOLVER=PARDISO
*STATIC,SOLVER=SPOOLES

unfortunately, there doesn’t appear to be a global switch for solver type. you have to add it to each analysis you run.

also, i did many benchmarks of ccx_static.exe and ccx_dynamic.exe. the ccx_dynamic.exe file ran slightly faster most of the time. especially if you don’t have the following specified:

OPENBLAS_NUM_THREADS=1
PASTIX_MIXED_PRECISION=1

so i would just run ccx_dynamic.exe.