futhark-multicore

SYNOPSIS

futhark multicore [options…] <program.fut>

DESCRIPTION

futhark multicore translates a Futhark program to multithreaded C code, and either compiles that C code with a C compiler to an executable binary program, or produces a .h and .c file that can be linked with other code. The standard Futhark optimisation pipeline is used.

The resulting program will read the arguments to the entry point (main by default) from standard input and print its return value on standard output. The arguments are read and printed in Futhark syntax.

OPTIONS

-h

Print help text to standard output and exit.

--entry-point NAME

Treat this top-level function as an entry point.

--library

Generate a library instead of an executable. Appends .c/.h to the name indicated by the -o option to determine output file names.

-o outfile

Where to write the result. If the source program is named foo.fut, this defaults to foo.

--safe

Ignore unsafe in program and perform safety checks unconditionally.

--server

Generate a server-mode executable that reads commands from stdin.

-v verbose

Enable debugging output. If compilation fails due to a compiler error, the result of the last successful compiler step will be printed to standard error.

-V

Print version information on standard output and exit.

-W

Do not print any warnings.

--Werror

Treat warnings as errors.

ENVIRONMENT VARIABLES

CC

The C compiler used to compile the program. Defaults to cc if unset.

CFLAGS

Space-separated list of options passed to the C compiler. Defaults to -O3 -std=c99 -pthread if unset.

EXECUTABLE OPTIONS

Generated executables accept the same options as those generated by futhark-c. The following additional options are accepted.

-P, --profile

Collect and report various bits of profiling information.

--num-threads=INT

Use this many physical threads.

BUGS

Currently works only on Unix-like systems because of a dependency on pthreads. Adding support for Windows would likely not be difficult.

SEE ALSO

futhark-c, futhark-test