Annotation of /trunk/src/clinfo/main.c

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Revision 1671 - (view) (download) (as text)

1 :	jhr	1671	/*! \file main.c
2 :	jhr	1640	*
3 :			* \author John Reppy
4 :			*
5 :			* \brief This program is used to determine properties of the host machine's
6 :			* OpenCL support.
7 :			*
8 :			* Usage:
9 :			* clinfo cmd [args]
10 :			*
11 :			* where cmd is one of
12 :			* platforms -- prints a list of OpenCL platforms supported by the
13 :			* host.
14 :			* version platform -- prints version of OpenCL supported by the platform. The
15 :			* format is "OpenCL major.minor ..."
16 :			* devices platform -- prints a list of devices
17 :			* extensions device -- prints a list of extensions that are
18 :			* supported by the device
19 :			*/
20 :
21 :			/*
22 :			* COPYRIGHT (c) 2011 The Diderot Project (http://diderot-language.cs.uchicago.edu)
23 :			* All rights reserved.
24 :			*/
25 :
26 :	jhr	1671	#include "clinfo.h"
27 :	jhr	1640	#include <stdio.h>
28 :			#include <string.h>
29 :			#include <stdlib.h>
30 :
31 :			#define MAX_PLATFORMS 16
32 :
33 :			static void usage ();
34 :	jhr	1671	static PlatformInfo_t *GetPlatformByName (const CLInfo_t *info, const char *name);
35 :	jhr	1640
36 :			int main (int argc, const char **argv)
37 :			{
38 :			if (argc < 2) {
39 :			usage();
40 :			}
41 :
42 :	jhr	1671	// get CL info
43 :			CLInfo_t *info = GetCLInfo ();
44 :
45 :	jhr	1640	// process command-line options
46 :			if ((strcmp(argv[1], "platforms") == 0) && (argc == 2)) {
47 :	jhr	1671	for (int i = 0; i < info->numPlatforms; i++) {
48 :			printf ("%s\n", info->platforms[i].name);
49 :	jhr	1640	}
50 :			}
51 :			else if ((strcmp(argv[1], "version") == 0) && (argc == 3)) {
52 :			char buf[256];
53 :	jhr	1671	cl_platform_id id = GetPlatformByName(info, argv[2]);
54 :	jhr	1640	clGetPlatformInfo (id, CL_PLATFORM_VERSION, sizeof(buf), buf, 0);
55 :			printf ("%s\n", buf);
56 :			}
57 :			else if ((strcmp(argv[1], "devices") == 0) && (argc == 3)) {
58 :			cl_platform_id id = GetPlatformByName(argv[2]);
59 :			cl_device_id *devs;
60 :			char buf[256];
61 :			int numDevs = GetDevices (id, CL_DEVICE_TYPE_ALL, &devs);
62 :			for (int i = 0; i < numDevs; i++) {
63 :			clGetDeviceInfo (devs[i], CL_DEVICE_NAME, sizeof(buf), buf, 0);
64 :			printf ("%s\n", buf);
65 :			}
66 :			}
67 :			else if ((strcmp(argv[1], "extensions") == 0) && (argc == 3)) {
68 :			cl_platform_id id = GetPlatformByName(argv[2]);
69 :			size_t bufSz;
70 :			// get the size of the extensions buffer
71 :			clGetPlatformInfo (id, CL_PLATFORM_EXTENSIONS, 0, 0, &bufSz);
72 :			char *buf = (char *)malloc(bufSz);
73 :			clGetPlatformInfo (id, CL_PLATFORM_EXTENSIONS, bufSz, buf, 0);
74 :			char *p = buf;
75 :			while (p != 0) {
76 :			p = strchr(p, ' ');
77 :			if (p != 0) *p = '\n';
78 :			}
79 :			printf ("%s", buf);
80 :			free (buf);
81 :			}
82 :			else
83 :			usage();
84 :
85 :			}
86 :
87 :			static void usage ()
88 :			{
89 :			exit (1);
90 :			}
91 :
92 :	jhr	1671	static PlatformInfo_t *GetPlatformByName (const CLInfo_t *info, const char *name)
93 :	jhr	1640	{
94 :	jhr	1671	for (cl_uint i = 0; i < info->numPlatforms; i++) {
95 :			if (strcmp(info->platforms[i].name, name) == 0)
96 :			return &(info->platforms[i]);
97 :	jhr	1640	}
98 :
99 :			fprintf (stderr, "platform %s not found\n", name);
100 :			exit (1);
101 :
102 :			}

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