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Motoko • 23 hours ago

Hi, the 8th tutorial is both hard and useful. I successfully get result = 8s for non-blocking case, by using intelMPI on Visual Studio.
However, for blocking case, I got result = 9s, which is a combination of 3 and 6 in process 0. Does anyone know why?

Motoko • 1 day ago

Hi, I just start using CodinGame today, so I don't quite understand why I end up with standard error like this but still successfully get my code passed.

------- THIS IS MY STANDARD ERROR---------------------

Unexpected end of /proc/mounts line `overlay / overlay rw,relatime,lowerdir=/var/lib/docker/overlay2/l/ISKVD7PF2YNC2NCOKEFYAGTX5K:/var/lib/docker/overlay2/l/F7MFFX7YDORR53GXYQ67BINBYJ:/var/lib/docker/overlay2/l/RAPKSZE33KIKOMTFYTUBZR55XI:/var/lib/docker/overlay2/l/HJ4Y66DLXALJI7ZEUNTNBT624J:/var/lib/docker/overlay2/l/MMJV4M7DGEPMZOQEUT4SCQ2BKX:/var/lib/docker/overlay2/l/DBID5NMUWBSO2CUWLNIPCKGX5A:/var/lib/docker/overlay2/l/IMATGCQKVBAS7MSGL44RV5MZFR:/var/lib/docker/overlay2/l/CIZ2DO3FSCJLDHHC3TYICRQRRE:/var/lib/docker/overlay2/l/Q7Y2WMYDMDO2S'
Unexpected end of /proc/mounts line `IM4HQZE4ITOFX:/var/lib/docker/overlay2/l/DQCG4DFUEJOZTRBS3EBJM4U5TR:/var/lib/docker/overlay2/l/IOLC4C6BUUWM4XX7IGLLQAG4WW:/var/lib/docker/overlay2/l/HAJ2SGNGXUTZOHBYW6LU5LMOUX:/var/lib/docker/overlay2/l/ORZNVWUMSFFKASYY5CQZVQCBYN:/var/lib/docker/overlay2/l/DFL2XTC2JZQBTSG42IRCPRY6UY:/var/lib/docker/overlay2/l/CBV4LLYZWQNYOL2ESAZIL63XLT:/var/lib/docker/overlay2/l/NTJ56UWHM6XDG35R4MMMJ2UPQV,upperdir=/var/lib/docker/overlay2/a578b55f4114ed3d72a59f9355be0e0d683cbadcd3f632b7aaead083aa946cab/diff,workdir=/var/li'
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 15 on node 58637ec980be exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------
Traceback (most recent call last):
File "check_blocking.py", line 16, in <module>
v = int(line)
ValueError: invalid literal for int() with base 10: '[58637ec980be:00015] *** Process received signal ***'

Sys • 3 months ago

Actually I'm working on simple mpi program which is about matrices multiplication and I need to know it's performance and output result comparing with sequential program, So could you please to guide me how Can I do the comparison ???