Hello there

I'm facing a weird issue in a centos 7.3 x86 machine when remotely running a program [https://www.myroms.org] from host1 to host2 and host3.

When the program was compiled with intel ifort 17.0, output redirection happens immediately and the file is constantly updated. If the program is compiled with gnu gfortran 5.3.0, the file is not written (zero bytes) until the end of the execution, as if some kind of buffering was happening.
Openmpi version is the same, 1.10.7, and configure options are as below:

intel:
--prefix /intel/path
--enable-shared
--enable-static
--enable-orterun-prefix-by-default
--with-slurm
--with-psm
--with-verbs=yes
--with-threads=posix
--with-hwloc=/hwloc/path
--disable-java
--disable-vt

gnu:
--prefix /gnu/path
--enable-shared
--enable-static
--enable-orterun-prefix-by-default
--with-sge
--with-tm
--with-slurm
--with-valgrind
--with-psm
--with-verbs=yes
--with-threads=posix
--with-hwloc=/hwloc/path
--with-libevent=/libevent/path
--with-psm2
--disable-java
--disable-vt


Does anything strikes as odd? Am I fumbling something?


TIA,
Fabricio
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