Last Revision Date: 12/8/08 Page 3
5.4 Program Objects....................................................................................................................................83
5.4.1 Creating Program Objects .....................................................................................................................................83
5.4.2 Building Program Executables..............................................................................................................................86
5.4.3 Build Options .........................................................................................................................................................87
5.4.3.1 Preprocessor options.....................................................................................................................................................88
5.4.3.2 Math Intrinsics Options................................................................................................................................................88
5.4.3.3 Optimization Options ...................................................................................................................................................89
5.4.3.4 Options to Request or Suppress Warnings..................................................................................................................90
5.4.4 Unloading the OpenCL Compiler.........................................................................................................................90
5.4.5 Program Object Queries ........................................................................................................................................91
5.5 Kernel Objects ....................................................................................................................................... 96
5.5.1 Creating Kernel Objects ........................................................................................................................................96
5.5.2 Setting Kernel Arguments .....................................................................................................................................98
5.5.3 Kernel Object Queries .........................................................................................................................................100
5.6 Executing Kernels................................................................................................................................103
5.7 Event Objects .......................................................................................................................................110
5.8 Out-of-order Execution of Kernels and Memory Object Commands ........................................114
5.9 Profiling Operations on Memory Objects and Kernels ................................................................117
5.10 Flush and Finish ................................................................................................................................119
6. THE OPENCL C PROGRAMMING LANGUAGE.....................................................120
6.1 Supported Data Types ........................................................................................................................120
6.1.1 Built-in Scalar Data Types ..................................................................................................................................120
6.1.1.1 The half data type .......................................................................................................................................................122
6.1.2 Built-in Vector Data Types .................................................................................................................................123
6.1.3 Other Built-in Data Types ...................................................................................................................................124
6.1.4 Reserved Data Types ...........................................................................................................................................124
6.1.5 Alignment of Types .............................................................................................................................................125
6.1.6 Vector Literals......................................................................................................................................................125
6.1.7 Vector Components .............................................................................................................................................126
6.2 Conversions and Type Casting..........................................................................................................130
6.2.1 Implicit Conversions............................................................................................................................................130
6.2.2 Explicit Casts .......................................................................................................................................................130
6.2.3 Explicit Conversions............................................................................................................................................131
6.2.3.1 Data Types ..................................................................................................................................................................132
6.2.3.2 Rounding Modes.........................................................................................................................................................132
6.2.3.3 Out of Range Behavior and Saturated Conversions.................................................................................................132
6.2.3.4 Explicit Conversion Examples ..................................................................................................................................133
6.2.4 Reinterpreting Data As Another Type................................................................................................................134
6.2.4.1 Reinterpreting Types Using Unions..........................................................................................................................134
6.2.4.2 Reinterpreting Types Using as_typen() ....................................................................................................................135
6.2.5 Pointer Casting .....................................................................................................................................................136
6.3 Operators ..............................................................................................................................................137
6.4 Vector Operations ...............................................................................................................................142
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