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#2 Re: Multiwfn and wavefunction analysis » GAMESS TDA-DFT Support » 2025-03-27 03:07:15

Thanks Tian for the confirmation! Does it support MR-SF-TDDFT result? I tried to generate NTOs or natural orbitals but ended up with errors (please see below). I also attached the example output file (MRSF.zip).
Thank you for your help!

6
Note: This file is recognized as a GAMESS-US output file
There are    3 excited states, loading basic information...

forrtl: severe (64): input conversion error, unit 10, file /pscratch/sd/z/zz/./test.gms
Image              PC                Routine            Line        Source
multiwfn           0000000002017E4B  Unknown               Unknown  Unknown
multiwfn           0000000002048A00  Unknown               Unknown  Unknown
multiwfn           00000000020466E3  Unknown               Unknown  Unknown
multiwfn           000000000098130E  Unknown               Unknown  Unknown
multiwfn           00000000009A55F9  Unknown               Unknown  Unknown
multiwfn           00000000009682C6  Unknown               Unknown  Unknown
multiwfn           00000000008543A7  Unknown               Unknown  Unknown
multiwfn           000000000042B922  Unknown               Unknown  Unknown
libc-2.31.so       000015519E19524D  __libc_start_main     Unknown  Unknown
multiwfn           000000000042B829  Unknown               Unknown  Unknown

#3 Multiwfn and wavefunction analysis » GAMESS TDA-DFT Support » 2025-03-25 02:31:17

zander_z
Replies: 4

Dear Tian,

I would like to generate NTOs of MR-SF-TDDFT from GAMESS. According to the GAMESS, this is only implemented in TDA approximation. However, the multiwfn manual states that the TDA from GAMESS is not supported. Will this be considered in multiwfn in near future? If not, I would try to implement the NTO for the GAMESS TDA result myself. Would you mind to share the reason or concern why GAMESS TDA was not supported by multiwfn?

Thanks,
Zander

#4 Re: Multiwfn and wavefunction analysis » segmentation fault during NTO analysis for ORCA SF-TDDFT » 2024-05-02 13:01:54

sobereva wrote:

Hello,

Please note that Multiwfn manual indicated: "Note: If ulimit -s unlimited does not work properly on your system, try to use ulimit -Sn unlimited instead"
So, please try "ulimit -Sn unlimited"

Thanks for your reply! I forgot to mention that ulimit -Sn unlimited didn't work as well.

#5 Multiwfn and wavefunction analysis » segmentation fault during NTO analysis for ORCA SF-TDDFT » 2024-05-02 04:03:40

zander_z
Replies: 3

Hi,

I'm using Multiwfn for NTO analysis from ORCA SF-TDDFT output. I encountered segmentation fault during the analysis: (output attached)

Calculating local term of density matrix...
Calculating cross term of density matrix...
forrtl: severe (174): SIGSEGV, segmentation fault occurred----]    50.0 %     |
Image              PC                Routine            Line        Source
multiwfn           00000000020257F3  Unknown               Unknown  Unknown
libpthread-2.31.s  000014934C25C910  Unknown               Unknown  Unknown
multiwfn           00000000011AF5FC  mkl_blas_def_xdge     Unknown  Unknown
multiwfn           00000000010EFA5E  Unknown               Unknown  Unknown
multiwfn           00000000010E6574  Unknown               Unknown  Unknown
multiwfn           000000000044312F  Unknown               Unknown  Unknown
multiwfn           0000000000986AF1  Unknown               Unknown  Unknown
multiwfn           0000000000968189  Unknown               Unknown  Unknown
multiwfn           0000000000854327  Unknown               Unknown  Unknown
multiwfn           000000000042B922  Unknown               Unknown  Unknown
libc-2.31.so       000014934C08424D  __libc_start_main     Unknown  Unknown
multiwfn           000000000042B829  Unknown               Unknown  Unknown

I have set ulimit -s unlimited. Running cat /proc/sys/kernel/shmmax returns 18446744073709551615

For one molecule (44 atoms), the NTO analysis can be done successfully for the excited state 1 but had segmentation fault for the rest of states. The other molecule I tested (34 atoms), the NTO analysis encountered segmentation fault for any states during the step of calculating cross term of density matrix.

I suspect it's due to some sort of insufficient memory, but I don't know what's the limiting part and how to adjust.

Thank you for your help!

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