-/* Copyright (c) 2007-2019. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "smpi_file.hpp"
#include "smpi_datatype.hpp"
+XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(smpi_pmpi);
+#define CHECK_RDONLY(fh) \
+ if ((fh)->flags() & MPI_MODE_RDONLY) \
+ return MPI_ERR_AMODE;
+#define CHECK_WRONLY(fh) \
+ if ((fh)->flags() & MPI_MODE_WRONLY) \
+ return MPI_ERR_AMODE;
+#define PASS_ZEROCOUNT(count) \
+ if ((count) == 0) { \
+ status->count = 0; \
+ return MPI_SUCCESS; \
+ }
+
+#define CHECK_FILE_INPUTS \
+ CHECK_FILE(1, fh) \
+ CHECK_COUNT(3, count) \
+ CHECK_TYPE(4, datatype) \
+ CHECK_BUFFER(2, buf, count, datatype) \
+
+#define CHECK_FILE_INPUT_OFFSET \
+ CHECK_FILE(1, fh) \
+ CHECK_OFFSET(3, offset) \
+ CHECK_COUNT(4, count) \
+ CHECK_TYPE(5, datatype) \
+ CHECK_BUFFER(2, buf, count, datatype) \
+
+extern MPI_Errhandler SMPI_default_File_Errhandler;
+
int PMPI_File_open(MPI_Comm comm, const char *filename, int amode, MPI_Info info, MPI_File *fh){
- if (comm == MPI_COMM_NULL)
- return MPI_ERR_COMM;
- if (filename == nullptr)
- return MPI_ERR_FILE;
+ CHECK_COMM(1)
+ CHECK_COLLECTIVE(comm, "MPI_File_open")
+ CHECK_NULL(2, MPI_ERR_FILE, filename)
if (amode < 0)
return MPI_ERR_AMODE;
- smpi_bench_end();
+ const SmpiBenchGuard suspend_bench;
*fh = new simgrid::smpi::File(comm, filename, amode, info);
- smpi_bench_begin();
if ((*fh)->size() != 0 && (amode & MPI_MODE_EXCL)){
delete fh;
return MPI_ERR_AMODE;
}
int PMPI_File_close(MPI_File *fh){
- if (fh==nullptr)
- return MPI_ERR_ARG;
- smpi_bench_end();
+ CHECK_NULL(2, MPI_ERR_ARG, fh)
+ CHECK_COLLECTIVE((*fh)->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
int ret = simgrid::smpi::File::close(fh);
*fh = MPI_FILE_NULL;
- smpi_bench_begin();
return ret;
}
-#define CHECK_FILE(fh) if(fh==MPI_FILE_NULL) return MPI_ERR_FILE;
-#define CHECK_BUFFER(buf, count) if (buf==nullptr && count > 0) return MPI_ERR_BUFFER;
-#define CHECK_COUNT(count) if (count < 0) return MPI_ERR_COUNT;
-#define CHECK_OFFSET(offset) if (offset < 0) return MPI_ERR_DISP;
-#define CHECK_DATATYPE(datatype, count) if (datatype == MPI_DATATYPE_NULL && count > 0) return MPI_ERR_TYPE;
-#define CHECK_STATUS(status) if (status == nullptr) return MPI_ERR_ARG;
-#define CHECK_FLAGS(fh) if (fh->flags() & MPI_MODE_SEQUENTIAL) return MPI_ERR_AMODE;
-#define CHECK_RDONLY(fh) if (fh->flags() & MPI_MODE_RDONLY ) return MPI_ERR_AMODE;
-
-#define PASS_ZEROCOUNT(count) if (count == 0) {\
-status->count=0;\
-return MPI_SUCCESS;\
-}
int PMPI_File_seek(MPI_File fh, MPI_Offset offset, int whence){
- CHECK_FILE(fh);
- smpi_bench_end();
- int ret = fh->seek(offset,whence);
- smpi_bench_begin();
+ CHECK_FILE(1, fh)
+ const SmpiBenchGuard suspend_bench;
+ int ret = fh->seek(offset*fh->etype()->get_extent(),whence);
return ret;
-
}
int PMPI_File_seek_shared(MPI_File fh, MPI_Offset offset, int whence){
- CHECK_FILE(fh)
- smpi_bench_end();
- int ret = fh->seek_shared(offset,whence);
- smpi_bench_begin();
+ CHECK_FILE(1, fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ int ret = fh->seek_shared(offset*fh->etype()->get_extent(),whence);
return ret;
-
}
int PMPI_File_get_position(MPI_File fh, MPI_Offset* offset){
- if (offset==nullptr)
- return MPI_ERR_DISP;
- smpi_bench_end();
+ CHECK_FILE(1, fh)
+ CHECK_NULL(2, MPI_ERR_DISP, offset)
+ const SmpiBenchGuard suspend_bench;
int ret = fh->get_position(offset);
- smpi_bench_begin();
return ret;
}
int PMPI_File_get_position_shared(MPI_File fh, MPI_Offset* offset){
- CHECK_FILE(fh)
- if (offset==nullptr)
- return MPI_ERR_DISP;
- smpi_bench_end();
+ CHECK_FILE(1, fh)
+ CHECK_NULL(2, MPI_ERR_DISP, offset)
+ const SmpiBenchGuard suspend_bench;
int ret = fh->get_position_shared(offset);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
+ CHECK_WRONLY(fh)
PASS_ZEROCOUNT(count)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - read", count * datatype->size()));
int ret = simgrid::smpi::File::read(fh, buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read_shared(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
+ CHECK_WRONLY(fh)
PASS_ZEROCOUNT(count)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - read_shared", count * datatype->size()));
int ret = simgrid::smpi::File::read_shared(fh, buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
CHECK_RDONLY(fh)
PASS_ZEROCOUNT(count)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - write", count * datatype->size()));
int ret = simgrid::smpi::File::write(fh, const_cast<void*>(buf), count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write_shared(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
CHECK_RDONLY(fh)
PASS_ZEROCOUNT(count)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - write_shared", count * datatype->size()));
int ret = simgrid::smpi::File::write_shared(fh, buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read_all(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_FILE_INPUTS
+ CHECK_WRONLY(fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - read_all", count * datatype->size()));
int ret = fh->op_all<simgrid::smpi::File::read>(buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read_ordered(MPI_File fh, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_FILE_INPUTS
+ CHECK_WRONLY(fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - read_ordered", count * datatype->size()));
int ret = simgrid::smpi::File::read_ordered(fh, buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write_all(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
CHECK_RDONLY(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - write_all", count * datatype->size()));
int ret = fh->op_all<simgrid::smpi::File::write>(const_cast<void*>(buf), count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write_ordered(MPI_File fh, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUTS
CHECK_RDONLY(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - write_ordered", count * datatype->size()));
int ret = simgrid::smpi::File::write_ordered(fh, buf, count, datatype, status);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read_at(MPI_File fh, MPI_Offset offset, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_OFFSET(offset)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
- PASS_ZEROCOUNT(count);
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_FILE_INPUTS
+ CHECK_WRONLY(fh)
+ PASS_ZEROCOUNT(count)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - read", count * datatype->size()));
+ MPI_Offset prev;
+ fh->get_position(&prev);
int ret = fh->seek(offset,MPI_SEEK_SET);
- if(ret!=MPI_SUCCESS)
- return ret;
- ret = simgrid::smpi::File::read(fh, buf, count, datatype, status);
+ if (ret == MPI_SUCCESS)
+ ret = simgrid::smpi::File::read(fh, buf, count, datatype, status);
+ fh->seek(prev,MPI_SEEK_SET);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_read_at_all(MPI_File fh, MPI_Offset offset, void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_OFFSET(offset)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_FILE_INPUT_OFFSET
+ CHECK_WRONLY(fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - read_at_all", count * datatype->size()));
+ MPI_Offset prev;
+ fh->get_position(&prev);
int ret = fh->seek(offset,MPI_SEEK_SET);
- if(ret!=MPI_SUCCESS)
- return ret;
- ret = fh->op_all<simgrid::smpi::File::read>(buf, count, datatype, status);
+ if (ret == MPI_SUCCESS)
+ ret = fh->op_all<simgrid::smpi::File::read>(buf, count, datatype, status);
+ fh->seek(prev,MPI_SEEK_SET);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write_at(MPI_File fh, MPI_Offset offset, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_OFFSET(offset)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUT_OFFSET
CHECK_RDONLY(fh)
- PASS_ZEROCOUNT(count);
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ PASS_ZEROCOUNT(count)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__, new simgrid::instr::CpuTIData("IO - write", count * datatype->size()));
+ MPI_Offset prev;
+ fh->get_position(&prev);
int ret = fh->seek(offset,MPI_SEEK_SET);
- if(ret!=MPI_SUCCESS)
- return ret;
- ret = simgrid::smpi::File::write(fh, const_cast<void*>(buf), count, datatype, status);
+ if (ret == MPI_SUCCESS)
+ ret = simgrid::smpi::File::write(fh, const_cast<void*>(buf), count, datatype, status);
+ fh->seek(prev,MPI_SEEK_SET);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_write_at_all(MPI_File fh, MPI_Offset offset, const void *buf, int count,MPI_Datatype datatype, MPI_Status *status){
- CHECK_FILE(fh)
- CHECK_BUFFER(buf, count)
- CHECK_OFFSET(offset)
- CHECK_COUNT(count)
- CHECK_DATATYPE(datatype, count)
- CHECK_STATUS(status)
- CHECK_FLAGS(fh)
+ CHECK_FILE_INPUT_OFFSET
CHECK_RDONLY(fh)
- smpi_bench_end();
- int rank_traced = simgrid::s4u::this_actor::get_pid();
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ const SmpiBenchGuard suspend_bench;
+ aid_t rank_traced = simgrid::s4u::this_actor::get_pid();
TRACE_smpi_comm_in(rank_traced, __func__,
new simgrid::instr::CpuTIData("IO - write_at_all", count * datatype->size()));
+ MPI_Offset prev;
+ fh->get_position(&prev);
int ret = fh->seek(offset,MPI_SEEK_SET);
- if(ret!=MPI_SUCCESS)
- return ret;
- ret = fh->op_all<simgrid::smpi::File::write>(const_cast<void*>(buf), count, datatype, status);
+ if (ret == MPI_SUCCESS)
+ ret = fh->op_all<simgrid::smpi::File::write>(const_cast<void*>(buf), count, datatype, status);
+ fh->seek(prev,MPI_SEEK_SET);
TRACE_smpi_comm_out(rank_traced);
- smpi_bench_begin();
return ret;
}
int PMPI_File_delete(const char *filename, MPI_Info info){
- if (filename == nullptr)
- return MPI_ERR_FILE;
- smpi_bench_end();
+ CHECK_NULL(1, MPI_ERR_FILE, filename)
+ const SmpiBenchGuard suspend_bench;
int ret = simgrid::smpi::File::del(filename, info);
- smpi_bench_begin();
+ return ret;
+}
+
+int PMPI_File_set_view(MPI_File fh, MPI_Offset disp, MPI_Datatype etype, MPI_Datatype filetype, const char *datarep, MPI_Info info){
+ CHECK_FILE(1, fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ if(not ((fh->flags() & MPI_MODE_SEQUENTIAL) && (disp == MPI_DISPLACEMENT_CURRENT)))
+ CHECK_OFFSET(2, disp)
+ CHECK_TYPE(3, etype)
+ CHECK_TYPE(4, filetype)
+ const SmpiBenchGuard suspend_bench;
+ int ret = fh->set_view(disp, etype, filetype, datarep, info);
+ return ret;
+}
+
+int PMPI_File_get_view(MPI_File fh, MPI_Offset *disp, MPI_Datatype *etype, MPI_Datatype *filetype, char *datarep){
+ CHECK_FILE(1, fh)
+ CHECK_NULL(2, MPI_ERR_ARG, disp)
+ CHECK_NULL(3, MPI_ERR_ARG, etype)
+ CHECK_NULL(4, MPI_ERR_ARG, filetype)
+ const SmpiBenchGuard suspend_bench;
+ int ret = fh->get_view(disp, etype, filetype, datarep);
return ret;
}
int PMPI_File_get_info(MPI_File fh, MPI_Info* info)
{
- CHECK_FILE(fh)
- *info = fh->info();
+ CHECK_FILE(1, fh)
+ *info = new simgrid::smpi::Info(fh->info());
return MPI_SUCCESS;
}
int PMPI_File_set_info(MPI_File fh, MPI_Info info)
{
- CHECK_FILE(fh)
+ CHECK_FILE(1, fh)
fh->set_info(info);
return MPI_SUCCESS;
}
int PMPI_File_get_size(MPI_File fh, MPI_Offset* size)
{
- CHECK_FILE(fh)
+ CHECK_FILE(1, fh)
*size = fh->size();
return MPI_SUCCESS;
}
+int PMPI_File_set_size(MPI_File fh, MPI_Offset size)
+{
+ CHECK_FILE(1, fh)
+ CHECK_COLLECTIVE(fh->comm(), __func__)
+ fh->set_size(size);
+ return MPI_SUCCESS;
+}
+
int PMPI_File_get_amode(MPI_File fh, int* amode)
{
- CHECK_FILE(fh)
+ CHECK_FILE(1, fh)
*amode = fh->flags();
return MPI_SUCCESS;
}
int PMPI_File_get_group(MPI_File fh, MPI_Group* group)
{
- CHECK_FILE(fh)
+ CHECK_FILE(1, fh)
*group = fh->comm()->group();
return MPI_SUCCESS;
}
int PMPI_File_sync(MPI_File fh)
{
- CHECK_FILE(fh)
+ CHECK_FILE(1, fh)
fh->sync();
return MPI_SUCCESS;
}
+
+int PMPI_File_create_errhandler(MPI_File_errhandler_function* function, MPI_Errhandler* errhandler){
+ *errhandler=new simgrid::smpi::Errhandler(function);
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_get_errhandler(MPI_File file, MPI_Errhandler* errhandler){
+ if (errhandler==nullptr){
+ return MPI_ERR_ARG;
+ } else if (file == MPI_FILE_NULL) {
+ *errhandler = SMPI_default_File_Errhandler;
+ return MPI_SUCCESS;
+ }
+ *errhandler=file->errhandler();
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_set_errhandler(MPI_File file, MPI_Errhandler errhandler){
+ if (errhandler==nullptr){
+ return MPI_ERR_ARG;
+ } else if (file == MPI_FILE_NULL) {
+ SMPI_default_File_Errhandler = errhandler;
+ return MPI_SUCCESS;
+ }
+ file->set_errhandler(errhandler);
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_call_errhandler(MPI_File file,int errorcode){
+ CHECK_FILE(1, file)
+ MPI_Errhandler err = file->errhandler();
+ err->call(file, errorcode);
+ simgrid::smpi::Errhandler::unref(err);
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_get_type_extent(MPI_File fh, MPI_Datatype
+ datatype, MPI_Aint *extent){
+ CHECK_FILE(1, fh)
+ CHECK_TYPE(2, datatype)
+ CHECK_NULL(3, MPI_ERR_OTHER, extent)
+ *extent = datatype->get_extent();
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_set_atomicity(MPI_File fh, int a){
+ CHECK_FILE(1, fh)
+ fh->set_atomicity(a != 0);
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_get_atomicity(MPI_File fh, int* a){
+ CHECK_FILE(1, fh)
+ *a = fh->get_atomicity();
+ return MPI_SUCCESS;
+}
+
+int PMPI_File_get_byte_offset(MPI_File fh, MPI_Offset offset, MPI_Offset *disp){
+ CHECK_FILE(1, fh)
+ CHECK_NULL(3, MPI_ERR_OTHER, disp)
+ *disp = offset * fh->etype()->get_extent();
+ return MPI_SUCCESS;
+}
