Commit 493e779847dd36345af68cc043bda7db3c393a08

Add a check for the presence of supported backends.


93	93	grids = [x.__name__ for x in sym.KNOWN_GRIDS if x.dim == geo_class.dim]
94	94	default_grid = grids[0]
95	95
	96	supported_backends = get_backends()
	97
	98	if not supported_backends:
	99	raise ValueError('There are no supported compute backends on your system. Make sure pycuda or pyopencl are correctly installed.')
	100
96	101	parser = OptionParser()
97	102
98	103	parser.add_option('-q', '--quiet', dest='quiet', help='reduce verbosity', action='store_true', default=False)
…	…
126	126	parser.add_option_group(group)
127	127
128	128	group = OptionGroup(parser, 'Run mode settings')
129		group.add_option('--backend', dest='backend', help='backend', type='choice', choices=get_backends(), default=get_backends()[0])
	129	group.add_option('--backend', dest='backend', help='backend', type='choice', choices=supported_backends, default=supported_backends[0])
130	130	group.add_option('--benchmark', dest='benchmark', help='benchmark mode, implies no visualization', action='store_true', default=False)
131	131	group.add_option('--max_iters', dest='max_iters', help='number of iterations to run in benchmark/batch mode', action='store', type='int', default=0)
132	132	group.add_option('--batch', dest='batch', help='run in batch mode, with no visualization', action='store_true', default=False)