I have a fortran program has some command line parameters.

I want to use Mathematica’s Run function to realize simple parallelization to loop over a set of command line paramters.

What is more, there is a system size parameter L in my fortran program. With larger L, more memory needed.

I first done test with L=100, the mathematica script run.m is simply

Run["./a.out",0,0,0,0,0,0,0] 

and math -script run.m works great.

However, if I change L=300 in fortran and recompile. math -script run.m got errors like

[q@i02n18 no_v]$   math -script run.m  getting sparse matrix ...  getting dos by chebyshev ... forrtl: severe (174): SIGSEGV, segmentation fault occurred Image              PC                Routine            Line        Source a.out              00000000004D70E1  Unknown               Unknown  Unknown a.out              00000000004D521B  Unknown               Unknown  Unknown a.out              0000000000479AB4  Unknown               Unknown  Unknown a.out              00000000004798C6  Unknown               Unknown  Unknown a.out              0000000000436029  Unknown               Unknown  Unknown a.out              0000000000439C16  Unknown               Unknown  Unknown libpthread-2.17.s  00002AC56B1F0370  Unknown               Unknown  Unknown a.out              00000000004166F0  chebyshev_ldos_            78  module_chebyshev.f90 a.out              00000000004127D6  twoband_                  118  model_twoband.f90 a.out              0000000000411228  MAIN__                     39  main.f90 a.out              0000000000403BDE  Unknown               Unknown  Unknown libc-2.17.so       00002AC56B720B35  __libc_start_main     Unknown  Unknown a.out              0000000000403AE9  Unknown               Unknown  Unknown 

As we can see, it did start calculation because it print two lines of message, but then subject to “segmentation fault occurred”

However, at the time, if I run ./a.out 0 0 0 0 0 0 0, it works, and if I look at the memory usage, it is quite small as 145MB. So it probably not due to memory issue maybe?

Is anybody know whether there is some implicit limit of Run function?