User Tools

Site Tools

Trace:
library:computing:xios_impi_troubles

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
library:computing:xios_impi_troubles [2025/06/16 13:09]
84.88.52.107 old revision restored (2025/05/11 16:08) 		library:computing:xios_impi_troubles [2025/06/28 04:44] (current)
84.88.52.107 old revision restored (2017/08/04 15:13)
Line 136: Line 136:
 **Diagnosis:** What we know until now is that compiling NetCDF with P-NetCDF messes up the nc_open function so it cannot be used by NEMO. We are not sure if this problem is produced by NetCDF alone, or if netcdf.hpp header files included with XIOS 2.0 are doing the mess. As stated above, compiling NetCDF ourselves would be needed to know more about the problem. **Diagnosis:** What we know until now is that compiling NetCDF with P-NetCDF messes up the nc_open function so it cannot be used by NEMO. We are not sure if this problem is produced by NetCDF alone, or if netcdf.hpp header files included with XIOS 2.0 are doing the mess. As stated above, compiling NetCDF ourselves would be needed to know more about the problem.
  
-**Solution:** Until we have more information the best solution is to use a NetCDF version that does not have P-NetCDF support (4.2 and 4.4.0 in MN4). In any case XIOS uses NC4, which is using HDF5 for parallel write.+**Solution:** Until we have more information the best solution is to use a NetCDF version that does not have P-NetCDF support. In any case XIOS uses NC4, which is using HDF5 for parallel write.
  
 **More information:** **More information:**
Line 270: Line 270:
  
 [[https://github.com/01org/psm/blob/master/ptl_ips/ips_proto.c]] [[https://github.com/01org/psm/blob/master/ptl_ips/ips_proto.c]]
-==== Issue 4: EC-Earth enters in a dead lock when using fabric (OFA network fabrics) module ====+==== Issue 4: ====
  
 **Environment:** Auto-EC-Earth 3.2.2_develop_MN4 (EC-Earth 3.2 r4063-runtime-unification).  **Environment:** Auto-EC-Earth 3.2.2_develop_MN4 (EC-Earth 3.2 r4063-runtime-unification). 
Line 280: Line 280:
   * Flags: -O0 & -O3   * Flags: -O0 & -O3
  
-**Problem:** When loading module fabric, created by Ops to solve Issue 2 on NEMO (assertion invalid), EC-Earth enters in a deadlock. Our NEMO benchmark was rather running, but MPI_Finalize was not working and jobs never finished until wallclock time limit was reached. +**Problem:** 
  
 **Actions taken:** **Actions taken:**
library/computing/xios_impi_troubles.1750079390.txt.gz ยท Last modified: 2025/06/16 13:09 by 84.88.52.107

Page Tools

Donate Powered by PHP Valid HTML5 Valid CSS Driven by DokuWiki