disable hyperthreading devcloud

[dreamalone]

Is there any way to run the parallel job without hyperthreading on?

because of hyperthreading my program is taking too much time to finish

#PBS -l nodes=2:ppn=12,walltime=24:00:00

But when I use

#PBS -l nodes=1:ppn=12,walltime=24:00:00

my job starts within a sec.

[JananiC_Intel]

Hi,

Thanks for posting in Intel forums.

Are you using mpi in your code? Could you share the reproducer to check from our end?

Regards,

Janani Chandran

[dreamalone]

@JananiC_Intel  Apology for the late response.
Yes I am using MPI in the code.
The code is Quantum Espresso (https://www.quantum-espresso.org/)
if you require input files then will share. But i believe you can get all the information on the given site.
Please have a look.

[JananiC_Intel]

Hi,

Thanks for the update.

We will check on this internally and let you know.

Regards,

Janani Chandran

[dreamalone]

Thanks a lot.

[dreamalone]

@JananiC_Intel 

My problem is resolved.

My job is taking a lot of time because of inter-node MPI communication.
Not because of Hyperthreading.

[JananiC_Intel]

Hi,

Glad to know that your issue is resolved. If you need any additional information, please submit a new question as this thread will no longer be monitored

Regards,

Janani Chandran