Hi,
Thanks very much for reporting the issue. We should have it fixed very soon.
Fortunately, it should only affect a few cases when using pseudopotentials
without any projector.
Pietro
________________________________
From: users <users-boun...@lists.quantum-espresso.org> on behalf of Scott
Brozell <sbroz...@comcast.net>
Sent: Thursday, June 27, 2024 22:08
To: Quantum ESPRESSO users Forum <users@lists.quantum-espresso.org>
Subject: [QE-users] PHonon regression
Hi,
I am reporting a regression in QE 7.3 for PHonon/examples/example04
which calculates the normal modes of the molecule CH4.
We have typical hardware running various versions of RHELS, eg:
Model name: Intel(R) Xeon(R) Gold 6148 CPU @ 2.40GHz
Red Hat Enterprise Linux Server release 7.9 (Maipo)
There is no difference in the total energies from ch4.scf.out.
For a build with intel 19.0.5 (including mkl) and mvapich2 2.3.3
the frequencies in ch4.nm.out are initially all asterisks, but after
a minor change:
(
diff q-e-qe-7.3/PHonon/PH/dyndia.f90 q-e-qe-7.3formatchange/PHonon/PH/dyndia.f90
96c96
< 9010 format (5x,'freq (',i5,') =',f15.6,' [THz] =',f15.6,' [cm-1]')
---
> 9010 format (5x,'freq (',i5,') =',g15.6,' [THz] =',g15.6,' [cm-1]')
)
the frequencies are seen to be astronomical:
**************************************************************************
freq ( 1) = -0.479981+102 [THz] = -0.160105+104 [cm-1]
freq ( 2) = -0.206365+102 [THz] = -0.688359+103 [cm-1]
freq ( 3) = -0.192288+102 [THz] = -0.641402+103 [cm-1]
freq ( 4) = -0.174235+102 [THz] = -0.581187+103 [cm-1]
freq ( 5) = -0.124589+102 [THz] = -0.415585+103 [cm-1]
freq ( 6) = -0.621996+101 [THz] = -0.207476+103 [cm-1]
freq ( 7) = -0.599140+101 [THz] = -0.199851+103 [cm-1]
freq ( 8) = -0.137753E+94 [THz] = -0.459496E+95 [cm-1]
freq ( 9) = 0.294112E+94 [THz] = 0.981053E+95 [cm-1]
freq ( 10) = 0.195386+101 [THz] = 0.651739+102 [cm-1]
freq ( 11) = 0.455999+101 [THz] = 0.152105+103 [cm-1]
freq ( 12) = 0.644921+101 [THz] = 0.215123+103 [cm-1]
freq ( 13) = 0.343296+102 [THz] = 0.114511+104 [cm-1]
freq ( 14) = 0.346276+102 [THz] = 0.115505+104 [cm-1]
freq ( 15) = 0.421103+102 [THz] = 0.140465+104 [cm-1]
**************************************************************************
For a qe7.3 build with gnu 8.4.0, mvapich2 2.3.3, and mkl 2019.0.5
the frequencies in ch4.nm.out are merely bad:
**************************************************************************
freq ( 1) = -9.773705 [THz] = -326.015720 [cm-1]
freq ( 2) = -8.889882 [THz] = -296.534532 [cm-1]
freq ( 3) = -5.549399 [THz] = -185.108021 [cm-1]
freq ( 4) = 1.585071 [THz] = 52.872283 [cm-1]
freq ( 5) = 5.255137 [THz] = 175.292486 [cm-1]
freq ( 6) = 6.649912 [THz] = 221.817198 [cm-1]
freq ( 7) = 34.550754 [THz] = 1152.489094 [cm-1]
freq ( 8) = 37.202830 [THz] = 1240.952824 [cm-1]
freq ( 9) = 37.503239 [THz] = 1250.973413 [cm-1]
freq ( 10) = 43.470790 [THz] = 1450.029471 [cm-1]
freq ( 11) = 43.472451 [THz] = 1450.084874 [cm-1]
freq ( 12) = 89.328051 [THz] = 2979.663039 [cm-1]
freq ( 13) = 90.261402 [THz] = 3010.796276 [cm-1]
freq ( 14) = 92.248874 [THz] = 3077.091230 [cm-1]
freq ( 15) = 94.624278 [THz] = 3156.326165 [cm-1]
**************************************************************************
Note that the reference outputs are from v.6.0, but we have had
consistent agreement through 6.7. 7.3 is the first v7 we've installed.
This smells fishy even though it is only a toy calculation,
but i wanted to notify the community and get feedback before
submitting a gitlab issue.
Best regards,
Scott
--
Scott Brozell, Ph.D.
Scientific Applications Senior Engineer
Scientific Applications Group
Ohio Supercomputer Center
1224 Kinnear Rd.
Columbus, OH 43212
_______________________________________________
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_______________________________________________
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_______________________________________________
The Quantum ESPRESSO community stands by the Ukrainian
people and expresses its concerns about the devastating
effects that the Russian military offensive has on their
country and on the free and peaceful scientific, cultural,
and economic cooperation amongst peoples
_______________________________________________
Quantum ESPRESSO is supported by MaX (www.max-centre.eu)
users mailing list users@lists.quantum-espresso.org
https://lists.quantum-espresso.org/mailman/listinfo/users
