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 gcc(1) 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, and GCC is invoked with -O3 -lm -std=c11 -pthread
.
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.
- --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 tofoo
.- --safe
Ignore
unsafe
in program and perform safety checks unconditionally.- -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.
EXECUTABLE OPTIONS¶
The following options are accepted by executables generated by
futhark multicore
.
- -h, --help
Print help text to standard output and exit.
- -b, --binary-output
Print the program result in the binary output format. The default is human-readable text, which is very slow.
- -D, --debugging
Perform possibly expensive internal correctness checks and verbose logging. Implies
-L
.- -e, --entry-point=FUN
The entry point to run. Defaults to
main
.- -L, --log
Print various low-overhead logging information to stderr while running.
- -r, --runs=NUM
Perform NUM runs of the program. With
-t
, the runtime for each individual run will be printed. Additionally, a single leading warmup run will be performed (not counted). Only the final run will have its result written to stdout.- -t, --write-runtime-to=FILE
Print the time taken to execute the program to the indicated file, an integral number of microseconds.
BUGS¶
Currently works only on Unix-like systems.