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Parallel mode on linux

Posted: February 3rd, 2021, 7:26 am
by imanberriban
Dear all,

I am trying to use multiprocessor to run the hysplit dispersion model on linux.

I execute the following command with MPI using 4 CPUs:
./ 4 hycm_std
( I edited the with my path of mpirun)

But, this did not work and I got the error below (see the attachment file).

do I need to recompile the model?

I recently got the pre-compiled distributions for LINUX operating systems without the LINUX source code.

Are there any thing I need to take care when using the multiprocessor?

Thank in Advance

Iman Berriban

Re: Parallel mode on linux

Posted: February 5th, 2021, 3:37 pm
by christopher.loughner
Refer to the file README_external_libraries.txt in the top directory of your pre-compiled version of HYSPLIT. Before running a pre-compiled executable, check to make sure all required libraries are properly linked to the executable. For hycm_std, type: ldd hycm_std

If any library is not found, you will have to link them. See the above mentioned Readme file on how to do this.

Note that the pre-compiled versions of HYSPLIT are not available for every flavor of linux machine / operating systems version number. If one is not available for your computer, you will have to request access to the source code and compile it in order to run on your machine.