Changes between Version 15 and Version 16 of Doc/ComputingCenters/TGCC/IreneRedHat8

Timestamp:

03/28/23 15:44:49 (15 months ago)

Author:

jgipsl

Comment:

--

Doc/ComputingCenters/TGCC/IreneRedHat8

@@ -3 +3 @@
 <h1>Porting on RedHat8 </h1>
 }}}
-[[NoteBox(note, After maintenance of April 11 and 12 all the Irene machines of the TGCC will change OS (it will go from redhat7 to redhat8), 600px)]]
+[[NoteBox(note, After maintenance of April 11 and 12 all the Irene machines of the TGCC will change OS (it will go from redhat7 to redhat8). As an addition of the change in OS old modules will not be available on redhat8 and we need to update compiler versions for our modules., 600px)]]
 
 [[PageOutline(1-2,Table of contents)]]
@@ -42 +42 @@
 
 == ORCHIDEE == 
-If you are working with a version older than rev 7792, you need to apply modifications described [https://forge.ipsl.jussieu.fr/orchidee/changeset/7792/ here].
+The new version of modules we now use on redhat8 can not handle to many files opened at the same time. When running LMDZOR on hybrid mode (mixed MPI-OpenMP), too many files text output files were opened in ORCHIDEE (out_orchidee_000x.000y). This has been changed in newer versions of ORCHIDEE: in revision 7792 for branch ORHIDEE_2_2 and 7790 in the trunk. 
+
+If you work with another version, do the following work-around in the code : [[BR]]
+
+In '''modeles/ORCHIDEE/src_parallel/mod_orchidee_para.F90''', comment the opening of the text output files and change to have numout=6, the output will now be sent to standard output for all cores.
+{{{
+!!!    OPEN(UNIT=numout,FILE=TRIM(fileout),ACTION='write',STATUS='unknown',FORM='formatted',IOSTAT=ierr)
+numout=6
+}}}
 
 == INCA ==