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If you have problems during the execution of MRCC, please attach the output with an adequate description of your case as well as the followings:
This information really helps us during troubleshooting
- the way mrcc was invoked
- the way build.mrcc was invoked
- the output of build.mrcc
- compiler version (for example: ifort -V, gfortran -v)
- blas/lapack versions
- as well as gcc and glibc versions
This information really helps us during troubleshooting
Strange results with cc-pcvtz vs. aug-cc-pcvtz
- bkwx97
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7 years 3 months ago #406
by bkwx97
Strange results with cc-pcvtz vs. aug-cc-pcvtz was created by bkwx97
Dear all,
I'm computing an all electron CCSD(T) energy with cc-pcvtz and aug-cc-pcvtz. I'm getting very strange energies. I've gotten similar results as the aug-cc-pcvtz with other programs, and other programs with the cc-pcvtz basis give a result closer to aug-cc-pcvtz.
I'm using the April 12, 2017 version compiled with intel 2015 and openmp.
The memory I'm using is overkill and it can be ran with way less.
Ecc-pcvtz= -4583.172882759474
Eaug-cc-pcvtz=-190.081261151800
basis=cc-pcvtz
calc=CCSD(T)
scftyp=RHF
mem=40000MB
scftol=10
cctol=8
charge=-1
core=0
ovirt=MP2
eps=0.9875
geom=xyz
6
C -1.1708030505 0.0784958569 0.0000000000
H -1.9777124093 -0.6733043675 0.0000000000
H -1.2763081940 0.7232314698 0.8883690097
H -1.2763081940 0.7232314698 -0.8883690097
O 0.0370131332 -0.5926235454 0.0000000000
O 1.0591571866 0.4809243702 0.0000000000
I'm computing an all electron CCSD(T) energy with cc-pcvtz and aug-cc-pcvtz. I'm getting very strange energies. I've gotten similar results as the aug-cc-pcvtz with other programs, and other programs with the cc-pcvtz basis give a result closer to aug-cc-pcvtz.
I'm using the April 12, 2017 version compiled with intel 2015 and openmp.
The memory I'm using is overkill and it can be ran with way less.
Ecc-pcvtz= -4583.172882759474
Eaug-cc-pcvtz=-190.081261151800
basis=cc-pcvtz
calc=CCSD(T)
scftyp=RHF
mem=40000MB
scftol=10
cctol=8
charge=-1
core=0
ovirt=MP2
eps=0.9875
geom=xyz
6
C -1.1708030505 0.0784958569 0.0000000000
H -1.9777124093 -0.6733043675 0.0000000000
H -1.2763081940 0.7232314698 0.8883690097
H -1.2763081940 0.7232314698 -0.8883690097
O 0.0370131332 -0.5926235454 0.0000000000
O 1.0591571866 0.4809243702 0.0000000000
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- kallay
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- Mihaly Kallay
7 years 3 months ago #407
by kallay
Best regards,
Mihaly Kallay
Replied by kallay on topic Strange results with cc-pcvtz vs. aug-cc-pcvtz
I cannot reproduce it, at least with another compiler version. It may be some compiler-related issue. You should try with the precompiled binaries.
Best regards,
Mihaly Kallay
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- bkwx97
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7 years 3 months ago #408
by bkwx97
Replied by bkwx97 on topic Strange results with cc-pcvtz vs. aug-cc-pcvtz
That seems to fix the issue. Also, the binary is ever so slightly faster than the version I compiled so that's a major relief for future work with it.
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