Unexpected crush at the dipoles calculation with yambo5.2

[jasonhan0710]

Dear all,

I have updated the yambo to version 5.2. However, after I compiled it with Intel oneapi, it stopped every time and without any error information when calculating the dipole term in GW. Would you please help me figure out this problem? Thank you!

Best,
Jason

[Nicola Spallanzani]

Dear Jason,
could you provide more information? For example sending the output and error files, the files "config.log", "config/report" and one of the log file that you can find in the LOG/ directory.

Best,
Nicola

[jasonhan0710]

Hi Nicola,

Thanks for your reply.

The config.log file is attached.

I set

Code: Select all

./configure --enable-open-mp --enable-mpi \
	    --enable-time-profile --enable-memory-profile --enable-msgs-comps \
	    --enable-slepc-linalg \
	    --with-blas-libs="${MKL_LIBS}" --with-lapack-libs="${MKL_LIBS}" \
	    --with-fft-includedir="${MKLROOT}/include" --with-fft-libs="${MKL_LIBS}" \
        --enable-dp

to compile the code.

The GW calculation stops at

Code: Select all

 <02s> P1-c55: [DIP] Database not correct or missing. To be computed
 <05s> P1-c55: [x,Vnl] computed using 130 projectors
 <05s> P1-c55: [WARNING] [x,Vnl] slows the Dipoles computation. To neglect it rename the ns.kb_pp file
 <05s> P1-c55: Dipoles: P, V and iR (T) |                                        | [000%] --(E) --(X)

and the report files shows that

Code: Select all

[06] Dipoles
 ============

 [RD./SAVE//ns.kb_pp_pwscf]------------------------------------------------------
  Fragmentation                                    : yes
 - S/N 002730 ---------------------------------------------- v.05.01.00 r.22170 -

 [WARNING] [x,Vnl] slows the Dipoles computation. To neglect it rename the ns.kb_pp file

without and error information.

The slurm reports

Code: Select all

===================================================================================
=   BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
=   RANK 2 PID 17140 RUNNING AT c56
=   KILLED BY SIGNAL: 11 (Segmentation fault)
===================================================================================

The same case can be calculated successfully with yambo-5.0.4.

Thank you!

Best,
Jason

[claudio]

Dear Jason

you can try to compile with debug flags, just add --enable-debug-flags to the configure,
and see if you get more information about the crash

another advice: you may remove --enable-dp
usually double precision is not so important for the GW calculations


best
Claudio

[jasonhan0710]

Dear Claudio and Nicola,

Thank you for your quick reply. I have recompiled yambo code with "--enable-debug-flags", however, it dose not give any error information in the report file and log file. The report file stops as previously and the log file shows that

Code: Select all

<---> [01] MPI/OPENMP structure, Files & I/O Directories
 <---> MPI Cores-Threads   : 1(CPU)-40(threads)
 <---> [02] CORE Variables Setup
 <---> [02.01] Unit cells
 <---> [02.02] Symmetries
 <---> [02.03] Reciprocal space
 <---> [02.04] K-grid lattice
 <---> Grid dimensions      :  20  20
 <---> [02.05] Energies & Occupations
 <---> [03] Transferred momenta grid and indexing
 <---> [04] Dipoles
 <02s> [DIP] Database not correct or missing. To be computed
 <03s> [x,Vnl] computed using 130 projectors
 <03s> [WARNING] [x,Vnl] slows the Dipoles computation. To neglect it rename the ns.kb_pp file
 <03s> Dipoles: P, V and iR (T) |                                        | [000%] --(E) --(X)[1]    48147 segmentation fault 

Do you have any thoughts on the problem?

Best,
Jason

[claudio]

Dear Jason

it is difficult to day, where is the problem.
Another test you can do it is to remove the MKL libraries

./configure --enable-open-mp --enable-mpi --enable-slepc-linalg

and try to run it again
Claudio

[Daniele Varsano]

Dear Jason,
besides what suggested by Claudio, it is useful to know the setup of your calculation. It is possible you are running out of memory.
You can add in the configure procedure the flag --enable-memory-profile and post your input and log file.
Best,
Daniele

[jasonhan0710]

Hi Daniele and Claudio,

Thanks for helping me solve the problem. After I removed the MKL libraries, yambo can run normally. Thank you!

Best,
Jason