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.TH "MPI_T_PVAR_RESET" "3" "Jul 22, 2024" "" "Open MPI"
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\fI\%MPI_T_pvar_reset\fP — Reset the value of a performance variable
.SH SYNTAX
.SS C Syntax
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.INDENT 3.5
.sp
.nf
.ft C
#include <mpi.h>

int MPI_T_pvar_reset(MPI_T_pvar_session session, MPI_T_pvar_handle handle)
.ft P
.fi
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.SH INPUT PARAMETERS
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.IP \(bu 2
\fBsession\fP: Performance experiment session.
.IP \(bu 2
\fBhandle\fP: Performance variable handle or MPI_T_PVAR_ALL_HANDLES.
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.SH DESCRIPTION
.sp
\fI\%MPI_T_pvar_reset\fP sets the performance variable specified by the handle
in \fIhandle\fP to its initial value. The special value
MPI_T_PVAR_ALL_HANDLES can be passed in \fIhandle\fP to reset all read\-write
handles in the session specified in \fIsession\fP\&.
.SH ERRORS
.sp
\fI\%MPI_T_pvar_reset\fP will fail if:
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.IP \(bu 2
\fBMPI_T_ERR_NOT_INITIALIZED\fP: The MPI Tools interface not initialized
.IP \(bu 2
\fBMPI_T_ERR_INVALID_HANDLE\fP: The handle is invalid
.IP \(bu 2
\fBMPI_T_ERR_INVALID_SESSION\fP: Session argument is not a valid session
.IP \(bu 2
\fBMPI_T_ERR_PVAR_NO_WRITE\fP: Variable cannot be reset
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.sp
\fBSEE ALSO:\fP
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.INDENT 3.5
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.IP \(bu 2
\fI\%MPI_T_pvar_handle_alloc\fP
.IP \(bu 2
\fI\%MPI_T_pvar_get_info\fP
.IP \(bu 2
\fI\%MPI_T_pvar_session_create\fP
.IP \(bu 2
\fI\%MPI_T_pvar_write\fP
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.SH COPYRIGHT
2003-2024, The Open MPI Community
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