futhark autotune [options…] <program.fut>
futhark-autotune attemps to find optimal values for threshold
parameters given representative datasets. This is done by repeatedly
running running the program through futhark-bench with
different values for the threshold parameters. When
futhark-autotune finishes tuning a program
results are written to
foo.fut.tuning, which will then
automatically be picked up by subsequent uses of
futhark-bench and futhark-test.
The backend used when compiling Futhark programs (without leading
futhark, e.g. just
The program used to perform operations (eg. compilation). Defaults to the binary running
Pass an option to programs that are being run. For example, we might want to run OpenCL programs on a specific device:
futhark autotune prog.fut --backend=opencl --pass-option=-dHawaii
The number of runs per data set.
- -v, --verbose
Print verbose information about what the tuner is doing. Pass multiple times to increase the amount of information printed.
Ignore the test specification in the program file(s), and instead load them from this other file. These external test specifications use the same syntax as normal, but without line comment prefixes A
==is still expected.
Change the extension used for tuning files (
Initial tuning timeout for each dataset in seconds. After running the intitial tuning run on each dataset, the timeout is based on the run time of that initial tuning. Defaults to 60.
A negative timeout means to wait indefinitely.