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/*@@
@file Write.c
@date Tue Oct 10 2000
@author Thomas Radke
@desc
File handling routines for IOStreamedHDF5.
@enddesc
@version $Id$
@@*/
#include <stdlib.h>
#include "cctk.h"
#include "cctk_Parameters.h"
#include "CactusBase/IOUtil/src/ioGH.h"
#include "CactusPUGHIO/IOHDF5Util/src/ioHDF5UtilGH.h"
#include "ioStreamedHDF5GH.h"
/* the rcs ID and its dummy function to use it */
static const char *rcsid = "$Header$";
CCTK_FILEVERSION(CactusPUGHIO_IOStreamedHDF5_Write_c)
/*@@
@routine IOStreamedHDF5_Write
@date Tue Oct 10 2000
@author Thomas Radke
@desc
Opens the HDF5 output file, calls the dump routine,
and closes it again.
@enddesc
@calls IOHDF5Util_DumpVar
@var GH
@vdesc Pointer to CCTK GH
@vtype const cGH *
@vio in
@endvar
@var vindex
@vdesc index of variable
@vtype int
@vio in
@endvar
@var alias
@vdesc alias name of variable to output
@vtype const char *
@vio unused
@endvar
@returntype int
@returndesc
return code of @seeroutine IOHDF5Util_DumpVar, or<BR>
-1 if variable has no storage assigned
@endreturndesc
@@*/
int IOStreamedHDF5_Write (const cGH *GH, int vindex, const char *alias)
{
int old_ioproc, old_nioprocs, old_ioproc_every, retval;
char *fullname;
ioGH *ioUtilGH;
ioStreamedHDF5GH *myGH;
hid_t file, plist;
H5FD_stream_fapl_t fapl;
DECLARE_CCTK_PARAMETERS
/* suppress compiler warnings about unused variables */
(void) (alias + 0);
/* first, check if variable has storage assigned */
if (! CCTK_QueryGroupStorageI (GH, CCTK_GroupIndexFromVarI (vindex)))
{
fullname = CCTK_FullName (vindex);
CCTK_VWarn (2, __LINE__, __FILE__, CCTK_THORNSTRING,
"No IOStreamedHDF5 output for '%s' (no storage)", fullname);
free (fullname);
return (-1);
}
ioUtilGH = CCTK_GHExtension (GH, "IO");
myGH = CCTK_GHExtension (GH, "IOStreamedHDF5");
/* for now we can only have I/O mode "oneproc" */
if (ioUtilGH->nioprocs != 1)
{
CCTK_WARN (2, "Output into multiple chunked files not yet implemented. "
"Switching to IO mode \"oneproc\".");
}
old_ioproc = ioUtilGH->ioproc;
ioUtilGH->ioproc = 0;
old_nioprocs = ioUtilGH->nioprocs;
ioUtilGH->nioprocs = 1;
old_ioproc_every = ioUtilGH->ioproc_every;
ioUtilGH->ioproc_every = CCTK_nProcs (GH);
file = -1;
if (CCTK_MyProc (GH) == 0 && myGH->data_socket != INVALID_SOCKET)
{
if (CCTK_Equals (verbose, "full"))
{
CCTK_VInfo (CCTK_THORNSTRING, "Opening HDF5 output file "
"on data output port %u", myGH->data_port);
}
/* set file access property list to use the Stream VFD
and open the file */
fapl.increment = 0;
fapl.socket = myGH->data_socket;
fapl.do_socket_io = 1;
fapl.backlog = 5;
fapl.broadcast_fn = NULL;
fapl.broadcast_arg = NULL;
HDF5_ERROR (plist = H5Pcreate (H5P_FILE_ACCESS));
HDF5_ERROR (H5Pset_fapl_stream (plist, &fapl));
/* filename is not used if we pass a plist
but it must not be NULL or an empty string */
HDF5_ERROR (file = H5Fcreate ("unused", H5F_ACC_TRUNC, H5P_DEFAULT,
plist));
HDF5_ERROR (H5Pclose (plist));
}
/* output the data */
retval = IOHDF5Util_DumpVar (GH, myGH->requests[vindex], file);
/* attach global information */
if (! retval && file >= 0)
{
IOHDF5Util_DumpGHExtensions (GH, file);
}
/* close the file */
if (file >= 0)
{
if (CCTK_Equals (verbose, "full"))
{
CCTK_INFO ("Closing HDF5 output file from this iteration");
}
HDF5_ERROR (H5Fclose (file));
}
/* restore original IO mode */
ioUtilGH->ioproc = old_ioproc;
ioUtilGH->nioprocs = old_nioprocs;
ioUtilGH->ioproc_every = old_ioproc_every;
return (retval);
}
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