NAME
adios2_iotest.mpi - ADIOS2 utility
SYNOPSIS
adios_iotest -a appid -c config {-s | -w} {-d d1[,d2,..,dN] | -D r1[,r2,..,rN]}[-x file]
DESCRIPTION
- -a appID:
-
unique number for each application in the workflow
-c config: data specification config file
- -d ...
-
define process decomposition:
- d1:
-
number of processes in 1st (slowest) dimension
- dN:
-
number of processes in Nth dimension d1*d2*..*dN must equal the number of processes
- -D ...
-
define process decomposition ratio:
- r1:
-
ratio of process decomposition in the 1st (slowest) dimension
- rN:
-
ratio of process decomposition in the Nth dimension r1xr2x..xrN must scale up to process countcount without remainder
- -s OR -w:
-
strong or weak scaling. Dimensions in config are treated accordingly
- -x file
-
ADIOS configuration XML file
- --hdf5
-
Use native Parallel HDF5 instead of ADIOS for I/O
- -v
-
increase verbosity
- -h
-
display this help
- -F
-
turn on fixed I/O pattern explicitly
- -T
-
turn on multi-threaded MPI (needed by SST/MPI)
- -p
-
specify the path of the output explicitly
- -t
-
print and dump the timing measured by the I/O timer