Multibinit spin dynamics inconsistencies

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azivkovic
Posts: 2
Joined: Thu Feb 05, 2015 4:51 pm

Multibinit spin dynamics inconsistencies

Post by azivkovic » Wed Feb 24, 2021 12:31 pm

Dear Abinit users,

While I was testing Multibinit for spin dynamics simulations (example nr.1, tmulti5_1 from the test folder) I noticed how values for the final magnetic moment differ as the number of processors increases. The results are listed below (examples of full results attached). I used ABINIT v.9.2.2 compiled with Intel2018 compilers on a local AMD-based cluster (each node having two 24-core processors).
-----------------
nproc | Ms
-----------------
1 | 4.10E-01
2 | 4.11E-01
4 | 4.03E-01
8 | 4.09E-01
16 | 4.02E-01
24 | 3.39E-01
32 | 4.06E-01
48 | 2.52E-01
96 | 6.44E-02
-----------------

I am not sure what I am doing wrong as I just ran the ready-made examples...has anyone encountered anything similar?

Cheers,
Aleks
Attachments
0001_tmulti5_1.out
(23.72 KiB) Downloaded 12 times
0004_tmulti5_1.out
(23.72 KiB) Downloaded 11 times
0007_tmulti5_1.out
(23.72 KiB) Downloaded 12 times
0008_tmulti5_1.out
(23.72 KiB) Downloaded 10 times

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