calling nf90_put_var with count=0

[Jim Edwards]

Hi Rob,

In order to avoid using the independent mode I am trying to call
nfmpi_put_vara_all
with count=0 on some processors.  This appears to work fine under the AIX
implementation
but causes a malloc error in romio on BG/L.   Here is a core dump referring
to source code in romio,
I don't have that source code but I have some hope that this will be enough
info for you to pinpoint the problem...

/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/common/malloc.c:88
hex = 0x00339bb4
/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:1316
hex = 0x003380c0
/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:588
hex = 0x003371d8
/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/adio/ad_bgl/ad_bgl_wrcoll.c:308
hex = 0x0032e438
/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/mpi-io/write_all.c:107
hex = 0x0032e234
/bglhome/usr1/tutewohl/V1R2M1_020_2006-060110/ppc/src/bglsw/mpi/mpich2/src/mpi/romio/mpi-io/write_all.c:53
hex = 0x002dee94
/home/jedwards/src/parallel-netcdf-1.0.1/src/lib/mpinetcdf.c:2294
hex = 0x002cd224
/home/jedwards/src/parallel-netcdf-1.0.1/src/libf/put_vara_allf.c:57
hex = 0x0029fde4
../src/netcdf_io_mod.F90:286
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