This is a OpenCL accelarated implementation of the K3C (formely 5CP) specified raw vlr format encoder and decoder written in C99, to benifit off any type of OpenCL compatible device not just the CPU, for now it chooses the default.

Building

This requires the ICD Loader and OpenCL headers and assumes that those are in compiler path.

The default Makefile uses gcc and getopt-style which is supported almost everywhere, to compile on different compiler do make CC=cumpiler CFLAGS="-I/usr/include -L/usr/lib64" build (you might omit CFLAGS as needed).

The resultant executable is chlr.out or .exe suffixed if on Windows.

Using

Environment variables

• IO_BUFFER_SIZE is a size_t which defines the minimum buffer size of data, by default 65536 bytes.
• CL_LWG_SIZE is a size_t which defines the OpenCL work-group size, by default maxed out. If IO_BUFFER_SIZE is not a mulitple of it, IO_BUFFER_SIZE is rounded up to the nearest multiple of it.

For example to encode text FINNA BUST A NUT TONIGHT.

$ ./chlr.out e /dev/stdin /dev/stdout <<< 'FINNA BUST A NUT TONIGHT'
-'---''--'--'--'-'--'''--'--'''--'-----'--'------'----'--'-'-'-'-'-'--''-'-'-'----'------'-----'--'------'--'''--'-'-'-'-'-'-'----'------'-'-'---'--''''-'--'''--'--'--'-'---'''-'--'----'-'-'------'-'-

And, with environs.

$ IO_BUFFER_SIZE=16384 CL_LWG_SIZE=64 ./chlr.out enc /proc/cpuinfo /tmp/cholorinfo

And, to decode. If the last blocking read would return bytes with size not mutiple to eight, last missing bytes will be zero concealed.

$ ./chlr.out d /tmp/cholorinfo /dev/stdout