Hello,
I am trying to use the solution proposed in
http://www.hdfgroup.org/HDF5/faq/pll-conf.html#1proc (root task write
HDF file in serial) to store some data generated by an MPI
application.
The problem is quite simple, and it's generated by this portion of code:
if (rank == 0) {
file_id = H5Fopen ("maps.h5" , H5F_ACC_RDWR, H5P_DEFAULT);
/* I/O stuff */
status = H5Fclose (file_id);
}
The program compiles without errors, but at runtime I get e following
error (plus a bunch of other stuff):
HDF5-DIAG: Error detected in HDF5 (1.8.4) thread 140538731431680:
#000: ../../../src/H5F.c line 1512 in H5Fopen(): unable to open file
major: File accessability
minor: Unable to open file
#001: ../../../src/H5F.c line 1216 in H5F_open(): unable to open file
major: File accessability
minor: Unable to open file
#002: ../../../src/H5FD.c line 1079 in H5FD_open(): open failed
major: Virtual File Layer
minor: Unable to initialize object
What am I doing wrong?
Thanks,
Francesco
PS Here is the configuration of my HDF5 system:
h5cc -showconfig
SUMMARY OF THE HDF5 CONFIGURATION
···
=================================
General Information:
-------------------
HDF5 Version: 1.8.4
Configured on: Mon Feb 15 20:19:46 UTC 2010
Configured by: root@crested
Configure mode: production
Host system: x86_64-pc-linux-gnu
Uname information: Linux crested 2.6.24-23-server #1 SMP Wed
Apr 1 22:14:30 UTC 2009 x86_64 GNU/Linux
Byte sex: little-endian
Libraries:
Installation point: /usr
Compiling Options:
------------------
Compilation Mode: production
C Compiler: /usr/bin/gcc (gcc-4.4.3)
CFLAGS: -O0
H5_CFLAGS: -std=c99 -pedantic -Wall -Wextra
-Wundef -Wshadow -Wpointer-arith -Wbad-function-cast -Wcast-qual
-Wcast-align -Wwrite-strings -Wconversion -Waggregate-return
-Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations
-Wredundant-decls -Wnested-externs -Winline -Wno-long-long
-Wfloat-equal -Wmissing-format-attribute -Wmissing-noreturn -Wpacked
-Wdisabled-optimization -Wformat=2 -Wunreachable-code -Wendif-labels
-Wdeclaration-after-statement -Wold-style-definition -Winvalid-pch
-Wvariadic-macros -Wnonnull -Winit-self -Wmissing-include-dirs
-Wswitch-default -Wswitch-enum -Wunused-macros
-Wunsafe-loop-optimizations -Wc++-compat -Wstrict-overflow
-Wlogical-op -Wlarger-than=2048 -Wvla -Wsync-nand
-Wframe-larger-than=16384 -Wpacked-bitfield-compat -O0
-fomit-frame-pointer -finline-functions
AM_CFLAGS:
CPPFLAGS:
H5_CPPFLAGS: -D_POSIX_SOURCE -DNDEBUG -UH5_DEBUG_API
AM_CPPFLAGS: -D_LARGEFILE_SOURCE
-D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_BSD_SOURCE
Shared Libraries: yes
Static Libraries: yes
Statically Linked Executables: no
LDFLAGS: -Wl,-Bsymbolic-functions
AM_LDFLAGS:
Extra libraries: -lpthread -lz -lm
Archiver: ar
Ranlib: ranlib
Debugged Packages:
API Tracing: no
Languages:
----------
Fortran: yes
Fortran Compiler: gfortran
Fortran Flags:
H5 Fortran Flags:
AM Fortran Flags: -O0
C++: yes
C++ Compiler: g++
C++ Flags: -O0
H5 C++ Flags:
AM C++ Flags:
Features:
---------
Parallel HDF5: no
High Level library: yes
Threadsafety: yes
Default API Mapping: v16
With Deprecated Public Symbols: yes
I/O filters (external): deflate(zlib)
I/O filters (internal): shuffle,fletcher32,nbit,scaleoffset
MPE: no
Direct VFD: no
dmalloc: no
Clear file buffers before write: yes
Using memory checker: no
Function Stack Tracing: no
GPFS: no
Strict File Format Checks: no
Optimization Instrumentation: no
Linux Large File Support (LFS): yes