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[diderot] Annotation of /trunk/src/lib/cl-target/clinfo.h
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Annotation of /trunk/src/lib/cl-target/clinfo.h

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1 : jhr 1671 /*! \file clinfo.h
2 :     *
3 :     * \author John Reppy
4 :     */
5 :    
6 :     /*
7 :     * COPYRIGHT (c) 2011 The Diderot Project (http://diderot-language.cs.uchicago.edu)
8 :     * All rights reserved.
9 :     */
10 :    
11 :     #ifndef _CLINFO_H_
12 :     #define _CLINFO_H_
13 :    
14 : lamonts 2060 #define NVIDIA_VENDOR_ID 4318
15 :     #define AMD_VENDOR_ID 4098
16 :    
17 : jhr 1671 #include "Diderot/diderot.h"
18 :     # ifdef HAVE_CL_CL_H
19 :     # include <CL/cl.h>
20 :     # elif defined(HAVE_OPENCL_CL_H)
21 :     # include <OpenCL/cl.h>
22 :     # else
23 :     # error no cl.h
24 :     # endif
25 :    
26 :     typedef struct {
27 :     char *name; //!< name of device
28 :     char *vendor; //!< device vendor
29 :     int majorVersion; //!< major OpenCL version number supported by the device
30 :     int minorVersion; //!< minor OpenCL version number supported by the device
31 : lamonts 2060 cl_uint vendorId; //!< A unique device vndeo identifier.
32 : jhr 1671 cl_device_id id; //!< the device ID
33 :     cl_device_type ty; //!< the type of the device
34 :     cl_bool isAvail; //!< true, if the device is available
35 :     cl_uint addrBits; //!< number of address bits on device (32 or 64)
36 :     cl_bool littleEndian; //!< true if device is little endian
37 :     cl_uint numCUs; //!< number of compute units
38 :     cl_uint cuWidth; //!< width of a compute unit; this value is determined
39 :     //! by looking at the device type and vendor string.
40 :     cl_uint maxConstArgs; //!< maximum number of __constant arguments
41 :     cl_uint maxWIDims; //!< maximum number of work item dimensions
42 :     size_t maxWGSize; //!< maximum workgroup size
43 :     size_t *maxWISize; //!< maximum number of work items in each dimension
44 :     cl_ulong globalMemSzb; //!< the size of the device's global memory
45 :     cl_ulong localMemSzb; //!< the size of the device's local memory
46 :     size_t maxParamSzb; //!< the maximum size in bytes of the kernel arguments
47 :     cl_ulong maxConstBufSzb; //!< maximum size of a constant buffer
48 :     cl_ulong maxAllocSzb; //!< maximum allocation size in bytes
49 :     size_t maxImg2D[2]; //!< maximum width and height of 2D images
50 :     size_t maxImg3D[3]; //!< maximim width, height, and depthe of 3D images
51 :     // prefered vector widths by type:
52 :     cl_uint charWid; //!< prefered width of char vectors
53 :     cl_uint shortWid; //!< prefered width of short vectors
54 :     cl_uint intWid; //!< prefered width of int vectors
55 :     cl_uint longWid; //!< prefered width of long vectors
56 :     cl_uint floatWid; //!< prefered width of float vectors
57 :     cl_uint doubleWid; //!< prefered width of double vectors
58 :     //! (0 if doubles are not supported)
59 :     } DeviceInfo_t;
60 :    
61 :     typedef struct {
62 :     char *name; //!< name of platform
63 :     cl_platform_id id; //! the platform ID
64 :     int numDevices; //!< number of devices supported by platform
65 :     DeviceInfo_t *devices; //!< array of devices
66 :     } PlatformInfo_t;
67 :    
68 :     typedef struct {
69 :     int numPlatforms; //!< number of platforms supported by system
70 :     PlatformInfo_t *platforms; //!< array of supported platforms.
71 :     } CLInfo_t;
72 :    
73 :     /*! \brief return information about the OpenCL support of the system.
74 :     * \return pointer to a CLInfo_t structure or 0 if there is an error.
75 :     */
76 :     CLInfo_t *GetCLInfo ();
77 :    
78 :     /*! \brief print the CL profile information to an output stream.
79 :     */
80 :     void PrintCLInfo (FILE *outS, CLInfo_t *clinfo);
81 :    
82 :     /*! \brief check to see if a device is a GPU */
83 :     STATIC_INLINE bool isGPUDevice (DeviceInfo_t *dev)
84 :     {
85 :     return ((dev->ty & CL_DEVICE_TYPE_GPU) != 0);
86 :     }
87 :    
88 :     /*! \brief check to see if a device is a CPU */
89 :     STATIC_INLINE bool isCPUDevice (DeviceInfo_t *dev)
90 :     {
91 :     return ((dev->ty & CL_DEVICE_TYPE_CPU) != 0);
92 :     }
93 :    
94 :     #endif /* !_CLINFO_H_ */

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