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