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

[Phil Carns]

Hi Hassan,

Is /darshan-logs/ a shared directory?

thanks,

-Phil

On 6/21/21 1:04 PM, Hassan Asghar wrote:
> 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 
> <mailto: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
>     <mailto:darshan-users-bounces at lists.mcs.anl.gov>> on behalf of
>     Hassan Asghar <haxxanasghar at gmail.com <mailto:haxxanasghar at gmail.com>>
>     Sent: Monday, June 21, 2021 12:35 AM
>     To: darshan-users at lists.mcs.anl.gov
>     <mailto: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 <http://bit.ly/2OQ0egs>
>     Google Scholar: https://bit.ly/3lVYuxF <https://bit.ly/3lVYuxF>
>
>
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