1
1

* Fix some "MPI:Exception" typos (needs 2 :'s)

* Update exactly how we handle MPI exceptions, particularly with
   respect to MPI-1 section 3.2.5, and how error handlers are only
   invoked for the ''first'' request that generates an exception.
 * Update the "see also" section to be consistent across all 8
   MPI_Test* and MPI_Wait* functions.
 * Fixes trac:560

This commit was SVN r13619.

The following Trac tickets were found above:
  Ticket 560 --> https://svn.open-mpi.org/trac/ompi/ticket/560
Этот коммит содержится в:
Jeff Squyres 2007-02-12 18:08:42 +00:00
родитель 68cc044162
Коммит dd35fb73ff
9 изменённых файлов: 257 добавлений и 35 удалений

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@ -42,7 +42,7 @@ This deprecated routine is not available in C++.
Associates the new error handler errhandler with communicator comm at the calling process. Note that an error handler is always associated with the communicator. Associates the new error handler errhandler with communicator comm at the calling process. Note that an error handler is always associated with the communicator.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.
.sp .sp
Before the error value is returned, the current MPI error handler is Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error.

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@ -1,5 +1,6 @@
.\"Copyright 2006, Sun Microsystems, Inc. .\"Copyright 2006, Sun Microsystems, Inc.
.\" Copyright (c) 1996 Thinking Machines Corporation .\" Copyright (c) 1996 Thinking Machines Corporation
.\"Copyright 2007, Cisco Systems, Inc. All rights reserved.
.TH MPI_Test 3OpenMPI "September 2006" "Open MPI 1.2" " " .TH MPI_Test 3OpenMPI "September 2006" "Open MPI 1.2" " "
.SH NAME .SH NAME
\fBMPI_Test\fP \- Tests for the completion of a specific send or receive. \fBMPI_Test\fP \- Tests for the completion of a specific send or receive.
@ -61,14 +62,47 @@ receives.
The use of the nonblocking MPI_Test call allows the user to schedule alternative activities within a single thread of execution. An event-driven thread scheduler can be emulated with periodic calls to MPI_Test. The use of the nonblocking MPI_Test call allows the user to schedule alternative activities within a single thread of execution. An event-driven thread scheduler can be emulated with periodic calls to MPI_Test.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.
.sp .sp
Before the error value is returned, the current MPI error handler is Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. called. By default, this error handler aborts the MPI job, except for
I/O function errors. The error handler may be changed with
MPI_Comm_set_errhandler, MPI_File_set_errhandler, or
MPI_Win_set_errhandler (depending on the type of MPI handle that
generated the request); the predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarantee that an MPI program can continue past an error.
.sp
Note that per MPI-1 section 3.2.5, MPI exceptions on requests passed
to MPI_TEST do not set the status.MPI_ERROR field in the returned
status. The error code is passed to the back-end error handler
and may be passed back to the caller through the return value of
MPI_TEST if the back-end error handler returns it. The
pre-defined MPI error handler MPI_ERRORS_RETURN exhibits this
behavior, for example.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Testall
.br
MPI_Testany
.br
MPI_Testsome
.br
MPI_Wait MPI_Wait
.br
MPI_Waitall
.br
MPI_Waitany
.br
MPI_Waitsome
.br
MPI_Win_set_errhandler
.br
' @(#)MPI_Test.3 1.20 06/03/09 ' @(#)MPI_Test.3 1.20 06/03/09

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@ -67,20 +67,52 @@ Errors that occurred during the execution of MPI_Testall are handled in the same
and neither \fIarray_of_requests\fP nor \fIarray_of_statuses\fP is modified. and neither \fIarray_of_requests\fP nor \fIarray_of_statuses\fP is modified.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. For each invocation of MPI_Testall, if one or more requests generate
an MPI exception, only the \fIfirst\fP MPI request that caused an
exception will be passed to its corresponding error handler. No other
error handlers will be invoked (even if multiple requests generated
exceptions). However, \fIall\fP requests that generate an exception
will have a relevant error code set in the corresponding
status.MPI_ERROR field (unless MPI_IGNORE_STATUSES was used).
.sp .sp
Before the error value is returned, the current MPI error handler is The default error handler aborts the MPI job, except for I/O function
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. errors. The error handler may be changed with MPI_Comm_set_errhandler,
MPI_File_set_errhandler, or MPI_Win_set_errhandler (depending on the
type of MPI handle that generated the MPI request); the predefined
error handler MPI_ERRORS_RETURN may be used to cause error values to
be returned. Note that MPI does not guarantee that an MPI program can
continue past an error.
.sp
If the invoked error handler allows MPI_Testall to return to the
caller, the value MPI_ERR_IN_STATUS will be returned in the C and
Fortran bindings. In C++, if the predefined error handler
MPI::ERRORS_THROW_EXCEPTIONS is used, the value MPI::ERR_IN_STATUS
will be contained in the MPI::Exception object. The MPI_ERROR field
can then be examined in the array of returned statuses to determine
exactly which request(s) generated an exception.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test
.br
MPI_Testany
.br
MPI_Testsome
.br
MPI_Wait
.br
MPI_Waitall
.br
MPI_Waitany MPI_Waitany
.br .br
MPI_Waitsome MPI_Waitsome
.br .br
MPI_Testsome MPI_Win_set_errhandler
.br .br
MPI_Waitall
' @(#)MPI_Testall.3 1.20 06/03/09 ' @(#)MPI_Testall.3 1.20 06/03/09

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@ -67,18 +67,47 @@ MPI_Testany(count, array_of_requests, index, status) has the same effect as the
If your application does not need to examine the \fIstatus\fP field, you can save resources by using the predefined constant MPI_STATUS_IGNORE as a special value for the \fIstatus\fP argument. If your application does not need to examine the \fIstatus\fP field, you can save resources by using the predefined constant MPI_STATUS_IGNORE as a special value for the \fIstatus\fP argument.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.
.sp .sp
Before the error value is returned, the current MPI error handler is Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. called. By default, this error handler aborts the MPI job, except for
I/O function errors. The error handler may be changed with
MPI_Comm_set_errhandler, MPI_File_set_errhandler, or
MPI_Win_set_errhandler (depending on the type of MPI handle that
generated the request); the predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarantee that an MPI program can continue past an error.
.sp
Note that per MPI-1 section 3.2.5, MPI exceptions on requests passed
to MPI_TESTANY do not set the status.MPI_ERROR field in the returned
status. The error code is passed to the back-end error handler and
may be passed back to the caller through the return value of
MPI_TESTANY if the back-end error handler returns it. The pre-defined
MPI error handler MPI_ERRORS_RETURN exhibits this behavior, for
example.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
.nf MPI_Comm_set_errhandler
MPI_Wait .br
MPI_Waitany MPI_File_set_errhandler
MPI_Waitsome .br
MPI_Test MPI_Test
.br
MPI_Testall
.br
MPI_Testsome MPI_Testsome
.br
MPI_Wait
.br
MPI_Waitall
.br
MPI_Waitany
.br
MPI_Waitsome
.br
MPI_Win_set_errhandler
.br
' @(#)MPI_Testany.3 1.20 06/03/09 ' @(#)MPI_Testany.3 1.20 06/03/09

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@ -73,18 +73,52 @@ efficient than the use of MPI_Testany. The former returns information on all com
A server with multiple clients can use MPI_Waitsome so as not to starve any client. Clients send messages to the server with service requests. The server calls MPI_Waitsome with one receive request for each client, then handles all receives that have completed. If a call to MPI_Waitany is used instead, then one client could starve while requests from another client always sneak in first. A server with multiple clients can use MPI_Waitsome so as not to starve any client. Clients send messages to the server with service requests. The server calls MPI_Waitsome with one receive request for each client, then handles all receives that have completed. If a call to MPI_Waitany is used instead, then one client could starve while requests from another client always sneak in first.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. For each invocation of MPI_Testsome, if one or more requests generate
an MPI exception, only the \fIfirst\fP MPI request that caused an
exception will be passed to its corresponding error handler. No other
error handlers will be invoked (even if multiple requests generated
exceptions). However, \fIall\fP requests that generate an exception
will have a relevant error code set in the corresponding
status.MPI_ERROR field (unless MPI_IGNORE_STATUSES was used).
.sp .sp
Before the error value is returned, the current MPI error handler is The default error handler aborts the MPI job, except for I/O function
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. errors. The error handler may be changed with MPI_Comm_set_errhandler,
MPI_File_set_errhandler, or MPI_Win_set_errhandler (depending on the
type of MPI handle that generated the MPI request); the predefined
error handler MPI_ERRORS_RETURN may be used to cause error values to
be returned. Note that MPI does not guarantee that an MPI program can
continue past an error.
.sp
If the invoked error handler allows MPI_Testsome to return to the
caller, the value MPI_ERR_IN_STATUS will be returned in the C and
Fortran bindings. In C++, if the predefined error handler
MPI::ERRORS_THROW_EXCEPTIONS is used, the value MPI::ERR_IN_STATUS
will be contained in the MPI::Exception object. The MPI_ERROR field
can then be examined in the array of returned statuses to determine
exactly which request(s) generated an exception.
.SH SEE ALSO .SH SEE ALSO
.ftR .ft R
.sp .sp
MPI_Waitsome MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test
.br
MPI_Testall
.br
MPI_Testany
.br
MPI_Wait
.br
MPI_Waitall
.br .br
MPI_Waitany MPI_Waitany
.br .br
MPI_Testany MPI_Waitsome
.br
MPI_Win_set_errhandler
.br
' @(#)MPI_Testsome.3 1.20 06/03/09 ' @(#)MPI_Testsome.3 1.20 06/03/09

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@ -69,14 +69,32 @@ Example: Simple usage of nonblocking operations and MPI_Wait.
.ni .ni
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.
.sp .sp
Before the error value is returned, the current MPI error handler is Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. called. By default, this error handler aborts the MPI job, except for
I/O function errors. The error handler may be changed with
MPI_Comm_set_errhandler, MPI_File_set_errhandler, or
MPI_Win_set_errhandler (depending on the type of MPI handle that
generated the request); the predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarantee that an MPI program can continue past an error.
.sp
Note that per MPI-1 section 3.2.5, MPI exceptions on requests passed
to MPI_WAIT do not set the status.MPI_ERROR field in the returned
status. The error code is passed to the back-end error handler
and may be passed back to the caller through the return value of
MPI_WAIT if the back-end error handler returns it. The
pre-defined MPI error handler MPI_ERRORS_RETURN exhibits this
behavior, for example.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test MPI_Test
.br .br
MPI_Testall MPI_Testall
@ -91,5 +109,7 @@ MPI_Waitany
.br .br
MPI_Waitsome MPI_Waitsome
.br .br
MPI_Win_set_errhandler
.br
' @(#)MPI_Wait.3 1.20 06/03/09 ' @(#)MPI_Wait.3 1.20 06/03/09

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@ -57,24 +57,52 @@ When one or more of the communications completed by a call to MPI_Waitall fail,
If your application does not need to examine the \fIarray_of_statuses\fP field, you can save resources by using the predefined constant MPI_STATUSES_IGNORE can be used as a special value for the \fIarray_of_statuses\fP argument. If your application does not need to examine the \fIarray_of_statuses\fP field, you can save resources by using the predefined constant MPI_STATUSES_IGNORE can be used as a special value for the \fIarray_of_statuses\fP argument.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. For each invocation of MPI_Waitall, if one or more requests generate
an MPI exception, only the \fIfirst\fP MPI request that caused an
exception will be passed to its corresponding error handler. No other
error handlers will be invoked (even if multiple requests generated
exceptions). However, \fIall\fP requests that generate an exception
will have a relevant error code set in the corresponding
status.MPI_ERROR field (unless MPI_IGNORE_STATUSES was used).
.sp .sp
Before the error value is returned, the current MPI error handler is The default error handler aborts the MPI job, except for I/O function
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. errors. The error handler may be changed with MPI_Comm_set_errhandler,
MPI_File_set_errhandler, or MPI_Win_set_errhandler (depending on the
type of MPI handle that generated the MPI request); the predefined
error handler MPI_ERRORS_RETURN may be used to cause error values to
be returned. Note that MPI does not guarantee that an MPI program can
continue past an error.
.sp
If the invoked error handler allows MPI_Waitall to return to the
caller, the value MPI_ERR_IN_STATUS will be returned in the C and
Fortran bindings. In C++, if the predefined error handler
MPI::ERRORS_THROW_EXCEPTIONS is used, the value MPI::ERR_IN_STATUS
will be contained in the MPI::Exception object. The MPI_ERROR field
can then be examined in the array of returned statuses to determine
exactly which request(s) generated an exception.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test
.br
MPI_Testall
.br
MPI_Testany
.br
MPI_Testsome
.br
MPI_Wait MPI_Wait
.br .br
MPI_Waitany MPI_Waitany
.br .br
MPI_Waitsome MPI_Waitsome
.br .br
MPI_Test MPI_Win_set_errhandler
.br .br
MPI_Testsome
.br
MPI_Testall
' @(#)MPI_Waitall.3 1.20 06/03/09 ' @(#)MPI_Waitall.3 1.20 06/03/09

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@ -88,14 +88,32 @@ If your application does not need to examine the \fIstatus\fP field, you can sav
.sp .sp
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI::Exception object.
.sp .sp
Before the error value is returned, the current MPI error handler is Before the error value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. called. By default, this error handler aborts the MPI job, except for
I/O function errors. The error handler may be changed with
MPI_Comm_set_errhandler, MPI_File_set_errhandler, or
MPI_Win_set_errhandler (depending on the type of MPI handle that
generated the request); the predefined error handler MPI_ERRORS_RETURN
may be used to cause error values to be returned. Note that MPI does
not guarantee that an MPI program can continue past an error.
.sp
Note that per MPI-1 section 3.2.5, MPI exceptions on requests passed
to MPI_WAITANY do not set the status.MPI_ERROR field in the returned
status. The error code is passed to the back-end error handler and
may be passed back to the caller through the return value of
MPI_WAITANY if the back-end error handler returns it. The pre-defined
MPI error handler MPI_ERRORS_RETURN exhibits this behavior, for
example.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test MPI_Test
.br .br
MPI_Testall MPI_Testall
@ -110,5 +128,7 @@ MPI_Waitall
.br .br
MPI_Waitsome MPI_Waitsome
.br .br
MPI_Win_set_errhandler
.br
' @(#)MPI_Waitany.3 1.22 06/03/09 ' @(#)MPI_Waitany.3 1.22 06/03/09

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@ -99,14 +99,37 @@ If your application does not need to examine the \fIarray_of_statuses\fP field,
The array of indices are in the range 0 to incount-1 for C and in the range 1 to incount for Fortran. The array of indices are in the range 0 to incount-1 for C and in the range 1 to incount for Fortran.
.SH ERRORS .SH ERRORS
Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument. C++ functions do not return errors. If the default error handler is set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to throw an MPI:Exception object. For each invocation of MPI_Waitsome, if one or more requests generate
an MPI exception, only the \fIfirst\fP MPI request that caused an
exception will be passed to its corresponding error handler. No other
error handlers will be invoked (even if multiple requests generated
exceptions). However, \fIall\fP requests that generate an exception
will have a relevant error code set in the corresponding
status.MPI_ERROR field (unless MPI_IGNORE_STATUSES was used).
.sp .sp
Before the error value is returned, the current MPI error handler is The default error handler aborts the MPI job, except for I/O function
called. By default, this error handler aborts the MPI job, except for I/O function errors. The error handler may be changed with MPI_Comm_set_errhandler; the predefined error handler MPI_ERRORS_RETURN may be used to cause error values to be returned. Note that MPI does not guarantee that an MPI program can continue past an error. errors. The error handler may be changed with MPI_Comm_set_errhandler,
MPI_File_set_errhandler, or MPI_Win_set_errhandler (depending on the
type of MPI handle that generated the MPI request); the predefined
error handler MPI_ERRORS_RETURN may be used to cause error values to
be returned. Note that MPI does not guarantee that an MPI program can
continue past an error.
.sp
If the invoked error handler allows MPI_Waitsome to return to the
caller, the value MPI_ERR_IN_STATUS will be returned in the C and
Fortran bindings. In C++, if the predefined error handler
MPI::ERRORS_THROW_EXCEPTIONS is used, the value MPI::ERR_IN_STATUS
will be contained in the MPI::Exception object. The MPI_ERROR field
can then be examined in the array of returned statuses to determine
exactly which request(s) generated an exception.
.SH SEE ALSO .SH SEE ALSO
.ft R .ft R
.sp .sp
MPI_Comm_set_errhandler
.br
MPI_File_set_errhandler
.br
MPI_Test MPI_Test
.br .br
MPI_Testall MPI_Testall
@ -117,9 +140,11 @@ MPI_Testsome
.br .br
MPI_Wait MPI_Wait
.br .br
MPI_Waitall
.br
MPI_Waitany MPI_Waitany
.br .br
MPI_Waitall MPI_Win_set_errhandler
.br .br
' @(#)MPI_Waitsome.3 1.20 06/03/09 ' @(#)MPI_Waitsome.3 1.20 06/03/09