futhark autotune [options…] program


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 foo.fut, the results are written to foo.fut.tuning, which will then automatically be picked up by subsequent uses of futhark-bench and futhark-test.

Currently, only the entry point named main is tuned.


--backend=name The backend used when compiling Futhark programs (without leading futhark, e.g. just opencl).
 The program used to perform operations (eg. compilation). Defaults to the binary running futhark autotune itself.

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
--runs=count 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.
 Change the extension used for tuning files (.tuning by default).