topic Re: Multi-threads processing in SAS Programming

Multi-threads processing

dapenDaniel — Tue, 13 Nov 2018 20:29:34 GMT

Hello! I am going to use a supercomputer to run my code and this supercomputer allows multi-threading. I need to tell the supercomputer how many tasks I would like to do when I submit the job order. The supercomputer has installed the latest version of SAS. I know SAS can do multi-threading process since SAS 9. Do I need to add some commands in my original code to tell SAS that I would like to do multi-threading? Or does SAS run multi-threading process automatically when I run codes on the supercomputer since I ordered more than one task?

If it needs additional command, where can I find these code?

Thanks a lot!

Re: Multi-threads processing

ballardw — Tue, 13 Nov 2018 22:09:45 GMT

You should check the documentation for the System Option THREADS which has some warnings and few comments about specific procedures and products and use of threads.

Re: Multi-threads processing

SASKiwi — Wed, 14 Nov 2018 00:06:03 GMT

Here is a link to the doc @ballardw refers to: https://documentation.sas.com/?docsetId=lesysoptsref&docsetTarget=p0cvg7xpfvfyn4n1rnp64gu91poh.htm&docsetVersion=9.4&locale=en

You might also want to consider using parallel processing as well. This is where you run several SAS sessions at the same time each running the same code, but on a different slice of your input data. Using SAS/CONNECT is a good way of doing this if it is available to you. This post contains a helpful example: https://communities.sas.com/t5/SAS-Statistical-Procedures/Multi-core-multi-threads-processing/m-p/78571#M14969