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.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.3.
.TH ADIOS2_IOTEST.MPI "1" "September 2024" "ADIOS" "User Commands"
.SH NAME
adios2_iotest.mpi \- ADIOS2 utility
.SH SYNOPSIS
.B adios_iotest
\fI\,-a appid -c config {-s | -w} {-d d1\/\fR[\fI\,,d2,\/\fR..\fI\,,dN\/\fR] \fI\,| -D r1\/\fR[\fI\,,r2,\/\fR..\fI\,,rN\/\fR]\fI\,}\/\fR[\fI\,-x file\/\fR]
.SH DESCRIPTION
.TP
\fB\-a\fR appID:
unique number for each application in the workflow
.HP
\fB\-c\fR config: data specification config file
.TP
\fB\-d\fR ...
define process decomposition:
.TP
d1:
number of processes in 1st (slowest) dimension
.TP
dN:
number of processes in Nth dimension
d1*d2*..*dN must equal the number of processes
.TP
\fB\-D\fR ...
define process decomposition ratio:
.TP
r1:
ratio of process decomposition in the 1st (slowest) dimension
.TP
rN:
ratio of process decomposition in the Nth dimension
r1xr2x..xrN must scale up to process countcount without remainder
.TP
\fB\-s\fR OR \fB\-w\fR:
strong or weak scaling.
Dimensions in config are treated accordingly
.TP
\fB\-x\fR file
ADIOS configuration XML file
.TP
\fB\-\-hdf5\fR
Use native Parallel HDF5 instead of ADIOS for I/O
.TP
\fB\-v\fR
increase verbosity
.TP
\fB\-h\fR
display this help
.TP
\fB\-F\fR
turn on fixed I/O pattern explicitly
.TP
\fB\-T\fR
turn on multi\-threaded MPI (needed by SST/MPI)
.TP
\fB\-p\fR
specify the path of the output explicitly
.TP
\fB\-t\fR
print and dump the timing measured by the I/O timer
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