[QE-developers] SX-Aurora TSUBASA

[IWATA NAOKI(岩田 直樹)]

Dear Ye and Paolo,

I am very sorry for my late response.
I will answer your questions:


-        SX-Aurora TSUBASA consists of VH(Vector Host: standard x86 server)

and VE(Vector Engine).

-        You can just compile your program with the NEC original compiler on VH,

then you can generate a vectorized code running on VE.

It is much easier to program the code than the GPGPU programming.

But such accelerator programming model is also available on SX-Aurora TSUBASA.

See page 5&7 of attached file.

-        You can also use the optimized libraries such FFT, BLAS, LAPACK, etc. for VE.

Since I sent the following email, we have applied our optimization to v6.4.
So I will send the source code to you via the NEC security site.
Please look at the code and please let me know if you have any questions.

Best Regards,

Naoki Iwata



From: IWATA NAOKI(岩田　直樹) <n-iwata-da at nec.com>
Sent: Thursday, May 28, 2020 10:21 PM
To: Ye Luo <xw111luoye at gmail.com>; Paolo Giannozzi <p.giannozzi at gmail.com>
Cc: General discussion list for Quantum ESPRESSO developers <developers at lists.quantum-espresso.org>; IWATA NAOKI(岩田　直樹) <n-iwata-da at nec.com>
Subject: Re: [QE-developers] SX-Aurora TSUBASA

Dear Ye and Paolo,

Thank you very much for your quick response and your interest in SX-Aurora TSUBASA.
I will answer your questions and will provide the code to you later.

At  this moment, please look at the following site:
https://www.hpc.nec/index.en


Best Regards,

Naoki Iwata.


From: Ye Luo <xw111luoye at gmail.com<mailto:xw111luoye at gmail.com>>
Sent: Thursday, May 28, 2020 1:09 AM
To: General discussion list for Quantum ESPRESSO developers <developers at lists.quantum-espresso.org<mailto:developers at lists.quantum-espresso.org>>
Cc: IWATA NAOKI(岩田　直樹) <n-iwata-da at nec.com<mailto:n-iwata-da at nec.com>>
Subject: ##freemail## Re: [QE-developers] SX-Aurora TSUBASA

Hi Naoki,
Could you put the code on gitlab or github for us to preview?
Could you say a bit more how did you "port"? Which part of QE was ported? How did you port?
NEC aurora is an accelerator but it is not a GPU. How did you program it?
I was aware of FFT libraries for SX-Aurora. Did you use SX-Aurora via library?

The code path to SX in FFTXLIB is not maintained for a long time I guess. Perhaps it is time to clean/refactor that part.

Regarding compiler options, do you have a customized compiler? Or it is gfortran or flang and you just need to just pass some -D flags?

Best,
Ye
===================
Ye Luo, Ph.D.
Computational Science Division & Leadership Computing Facility
Argonne National Laboratory


On Wed, May 27, 2020 at 10:15 AM IWATA NAOKI(岩田　直樹) <n-iwata-da at nec.com<mailto:n-iwata-da at nec.com>> wrote:
Dear developers,

My name Naoki Iwata from NEC Corporation in Japan.
We are developing and selling a newer vector-supercomputer, SX-Aurora TSUBASA.
https://www.nec.com/en/global/solutions/hpc/

We have ported and optimized QUANTAM ESPRESSO v6.3 for SX-Aurora TSUBASA.
So we would like to ask you to implement our compile options and source code changes
for the optimization for SX-Aurora TSUBASA into the original QUANTUM ESPRESSO
makefile and source code.
I looked at the users' guide, I found the description of SX-6 and SX-8. They are old system.
So we also would like to update it to SX-Aurora TSUBASA.
What should we do for that?

Best Regards,

Naoki Iwata
-----
Naoki Iwata (n-iwata-da at nec.com<mailto:n-iwata-da at nec.com>)
NEC AI Platform Division

_______________________________________________
developers mailing list
developers at lists.quantum-espresso.org<mailto:developers at lists.quantum-espresso.org>
https://lists.quantum-espresso.org/mailman/listinfo/developers
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.quantum-espresso.org/pipermail/developers/attachments/20200708/8fd76500/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 20200708_Aurora_Introduction.pdf
Type: application/pdf
Size: 1949637 bytes
Desc: 20200708_Aurora_Introduction.pdf
URL: <http://lists.quantum-espresso.org/pipermail/developers/attachments/20200708/8fd76500/attachment-0001.pdf>