Trying to get STAR to use all available cores on Threadripper

Question

[manish.nu]

I have ubuntu running on 36 core threadripper and 128 GB ram desktop. When I try to use STAR to index my genome file, I see only one core being utilized at 100%

I have used --runthreadn 20 as a parameter in the STAR indexing command.

Is there any way I can get STAR to use more processors?

Thanks!

Answer 1

[GenoMax]

Programs may not use all cores for all operations. If you have specified use of more than one core then STAR will use them as needed in appropriate steps.

[manish.nu]

Understood! Thank you!