Hi Rob,<br><br>In order to avoid using the independent mode I am trying to call nfmpi_put_vara_all<br>with count=0 on some processors. This appears to work fine under the AIX implementation<br>but causes a malloc error in romio on BG/L. Here is a core dump referring to source code in romio,
<br>I don't have that source code but I have some hope that this will be enough info for you to pinpoint the problem...<br><br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/common/malloc.c:88
<br>hex = 0x00339bb4<br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:1316<br>hex = 0x003380c0<br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:588
<br>hex = 0x003371d8<br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:308<br>hex = 0x0032e438<br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/mpi-io/write_all.c:107
<br>hex = 0x0032e234<br>/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/mpi-io/write_all.c:53<br>hex = 0x002dee94<br>/home/jedwards/src/parallel-netcdf-1.0.1/src/lib/mpinetcdf.c:2294<br>
hex = 0x002cd224<br>/home/jedwards/src/parallel-netcdf-1.0.1/src/libf/put_vara_allf.c:57<br>hex = 0x0029fde4<br>../src/netcdf_io_mod.F90:286<br><br><br>