Re: [NMusers] relation of numerical error to gfortran?

2022-04-08 Thread Tong Lu
Thanks a lot Rikard for sharing your experience and insights. We actually had some difficulty during the cluster upgrade to NM 7.5.1 & PsN 5.2.6 using Intel Fortran, and we ended up using gFortran. The reason would be cluster-specific and not due to NONMEM or PsN. In the past couple of days, we fo

Re: [NMusers] relation of numerical error to gfortran?

2022-04-04 Thread Tong Lu
Thanks Bill for your thoughtful reply! I am starting with adding "$ABBR PROTECT" to see if it would help. Meanwhile, we will try to re-install NONMEM 7.5.1 in the HPC with Intel Fortran. We had some issues with using Intel Fortran and PsN 5.2.6 before, and we will see if we can get around this time

RE: [NMusers] relation of numerical error to gfortran?

2022-03-31 Thread Bill Denney
Hi Tong, The general issue of floating point instability is generally a problem for models that are hard to fit (3 days with full parallelization sounds hard to fit). It’s discussed in the intro7.pdf document in section I.70, “Stable Model Development for Monte Carlo Methods”. Given that you