Poisson random number generator on IBM SP and on Sun sprac

08-27-2004, 11:07 AM
I am trying NR Poisson random number generator, (poidev(), on different platforms and I found out that the generator produces different sequences on IBM SP4 and on Sun sprac and SGI Origin 2000 (the later two outcomes are the same). I used XLF90 to compile the codes on SP4 and F90 on Sun sprac and Origin 2000. I have also tried with different optimization options, but it does not affect the sequences. What could be the explainations of this problem?

08-28-2004, 08:36 AM
Forget the question. The problem was caused by an extension in XL Fortran.:rolleyes: