[Darshan-users] Logs not generated inspite throwing warning message

[Hassan Asghar]

Yes, I have set the log path and all permission are given when i run
program on local machine it execute successfully but when i exceute on
three nodes it show error.

On Tue, 22 Jun 2021, 1:18 am Harms, Kevin, <harms at alcf.anl.gov> wrote:

> Hassan,
>
>   did you create the  /darshan-logs directory? Looks like it might not be
> writeable.
>
>   try: /darshan-logs/2021/6/21
>
>   if you want to try a quick test, set DARSHAN_LOGFILE to the path/name of
> the log, like:
>
>   DARSHAN_LOGFILE=/path/I/can/write/to/logfile.darshan
>
> kevin
>
> ________________________________________
> From: Darshan-users <darshan-users-bounces at lists.mcs.anl.gov> on behalf
> of Hassan Asghar <haxxanasghar at gmail.com>
> Sent: Monday, June 21, 2021 12:35 AM
> To: darshan-users at lists.mcs.anl.gov
> Subject: [Darshan-users] Logs not generated inspite throwing warning
> message
>
> I am running darshan with mpich on a three-node cluster and my job
> executed successfully but not generated logs. error warning is given below
> at the end of the execution.
>
> [haxxanasghar at gpuserver2 ~]$ mpiexec -n 64 -f machinefile -env LD_PRELOAD
> /usr/l
>
>            ocal/lib/libdarshan.so ./MADbench2 640 80 4 8 8 4 4
>
> MADbench 2.0 IO-mode
> no_pe = 64  no_pix = 640  no_bin = 80  no_gang = 4  sblocksize = 8
> fblocksize =
>
>                   8  r_mod = 4  w_mod = 4
> IOMETHOD = POSIX  IOMODE = SYNC  FILETYPE = UNIQUE  REMAP = CUSTOM
>
> S_cc         0.02   [      0.02:      0.03]
> S_bw         0.01   [      0.01:      0.01]
> S_w          0.03   [      0.03:      0.04]
>           -------
> S_total      0.07   [      0.07:      0.07]
>
> W_cc         0.04   [      0.03:      0.05]
> W_bw         0.22   [      0.20:      0.23]
> W_r          0.02   [      0.02:      0.02]
> W_w          0.01   [      0.01:      0.01]
>           -------
> W_total      0.28   [      0.28:      0.29]
>
> C_cc         0.01   [      0.01:      0.01]
> C_bw         0.00   [      0.00:      0.00]
> C_r          0.01   [      0.01:      0.01]
>           -------
> C_total      0.02   [      0.02:      0.02]
>
>
> dC[0] = 0.00000e+00
> darshan_library_warning: unable to create log file
> /darshan-logs/2021/6/21/haxxa
>
>
>  nas_MADbench2_id29484-29484_6-21-52165-1341319014666854881.darshan_partial.
> [haxxanasghar at gpuserver2 ~]$
>
>
> --
> Regards,
>
> Hassan Asghar
> MS Computer Science
> Mobile: +92-321-1741755
> Personal Website: http://bit.ly/2OQ0egs
> Google Scholar: https://bit.ly/3lVYuxF
>
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