NAME¶

flexiblas_list_loaded - list all loaded backends.

SYNOPSIS¶

#include <flexiblas/flexiblas_api.h>

int flexiblas_list_loaded(char *name, size_t len, int pos);

Link with -lflexiblas.

DESCRIPTION¶

flexiblas_list_loaded returns information about all loaded FlexiBLAS backends. If the buffer name is set to NULL the function returns the number of loaded backends. Otherwise the name parameter needs to be a character buffer of size len and the pos arguments specifies the number of the entry to return. The name of the backend is then copy to the buffer name with a length of at most len and the real length of the backend name is returned. The name is copied into the buffer using strncpy with a maximum length of len.

The pos parameter is valid in a range from 0..B-1, where B is the number of backends returned by a first call to flexiblas_list_loaded with a NULL buffer.

If the buffer is not large enough, i.e. the return value equals len-1, the returned named can not be used in other FlexiBLAS API calls like flexiblas_load_backend.

RETURN VALUE¶

On success, it returns the number of loaded backends if name==NULL or the length of the returned name using strlen.

In case of an error, like an out of range index pos, a negative number is returned.

ERRORS¶

All negative return values are errors.

EXAMPLE¶

The following example show how to list all loaded backends.

#include <stdio.h>
#include <flexiblas/flexiblas_api.h>
int main ( int argc, char **argv ) {
	char buffer[512];
	int n, pos;
	n = flexiblas_list_loaded(NULL, 0, 0);
	for ( pos = 0; pos < n; pos++ ) {
		flexiblas_list_loaded(buffer, 512, pos);
		printf("[%2d] %s\n", pos, buffer);
	}
	return 0;
}

SEE ALSO¶

flexiblas_list(3), flexiblas_load_backend(3)

REPORTING BUGS¶

The current information about the developers and reporting bugs can be found on the FlexiBLAS homepage.

FlexiBLAS Homepage: <http://www.mpi-magdeburg.mpg.de/projects/flexiblas>

AUTHORS¶

Martin Koehler, Jens Saak

COPYRIGHT¶

Copyright (C) 2013-2020 Martin Koehler

LICENSE¶

License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.