Re: [QE-users] Quantum Espresso on Amazon Web Services

[Minho Lee]

Dear Uri argaman,

Our service(materials square) is providing user interface and cloud HPC for QE.

Our service uses the AWS EC2 instances(c5), and we’ve found that performance is 
similar or superior to the on-premise HPC.

However, we also found that MPI performance dropped when we used c5.9xlarge 
instance. so I recommend to use top-level instance in the instance group(i. e. 
c5.18xlarge)

Could you provide your AWS environments(compiler, instance type, AMI,..)?

Sincerely,

Minho Lee

Minho Lee
CEO/Developer
T. 02-3293-0204 | C. 010-2770-4080
E. m...@virtuallab.co.kr | H. http://www.virtuallab.co.kr

On-demand Materials Simulation
https://www.materialssquare.com
On 2018년 9월 5일 PM 5:49 +0900, Uri Argaman , wrote:
> Dear QE users and devalopers
> I'm running QE on Amazon Web Services (AWS) and I see that the run times are 
> very bad compared to other systems that I use and I also encountered crashes 
> which I cannot understand the reason for them. Does anyone work on AWS and 
> know something about the performance and special compilation issues?
> Thank you
> Uri Argaman
> Ben-Gurion University
> Israel
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> users mailing list
> users@lists.quantum-espresso.org
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Re: [QE-users] Quantum Espresso on Amazon Web Services

[Giovanni Pizzi]

Hi,
Give a look to this article:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/t2-credits-baseline-concepts.html

It’s possible that you have one of these VMs, that on average deliver only a 
low (even only down to 5%) performance than the actual CPU performance (it 
might seem fast at the first run, if you didn’t run anything, but the algorithm 
of CPU credits will make runs be slow, eventually).

Also, crashes might be due to limited RAM.

HTH,

Giovanni

On 5 Sep 2018, at 10:48, Uri Argaman 
mailto:argam...@post.bgu.ac.il>> wrote:

Dear QE users and devalopers
I'm running QE on Amazon Web Services (AWS) and I see that the run times are 
very bad compared to other systems that I use and I also encountered crashes 
which I cannot understand the reason for them. Does anyone work on AWS and know 
something about the performance and special compilation issues?
Thank you
Uri Argaman
Ben-Gurion University
Israel
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users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users

___
users mailing list
users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users

[QE-users] Quantum Espresso on Amazon Web Services

[Uri Argaman]

Dear QE users and devalopers
I'm running QE on Amazon Web Services (AWS) and I see that the run times
are very bad compared to other systems that I use and I also encountered
crashes which I cannot understand the reason for them. Does anyone work on
AWS and know something about the performance and special compilation issues?
Thank you
Uri Argaman
Ben-Gurion University
Israel
___
users mailing list
users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users