cl_int
clBuildProgram
(
| cl_program program, |
| cl_uint num_devices, | |
| const cl_device_id *device_list, | |
| const char *options, | |
| void (*pfn_notify)(cl_program, void *user_data), | |
void *user_data) |
program
The program object
device_list
A pointer to a list of devices that are in program. If device_list is NULL value, the program executable is built for all devices associated with program for which a source or binary has been loaded. If device_list is a non-NULL value, the program executable is built for devices specified in this list for which a source or binary has been loaded.
num_devices
The number of devices listed in device_list.
options
A pointer to a string that describes the build options to be used for building the program executable. The list of supported options is described in "Build Options" below.
pfn_notify
A function pointer to a notification routine. The notification routine is a callback function that an application can register and which will be called when the program executable has been built (successfully or unsuccessfully). If pfn_notify is not NULL, clBuildProgram does not need to wait for the build to complete and can return immediately. If pfn_notify is NULL, clBuildProgram does not return until the build has completed. This callback function may be called asynchronously by the OpenCL implementation. It is the application's responsibility to ensure that the callback function is thread-safe.
user_data
Passed as an argument when pfn_notify is called. user_data can be NULL.
OpenCL allows program executables to be built using the source or the binary.
The build options are categorized as pre-processor options, options for math intrinsics, options that control optimization and miscellaneous options. This specification defines a standard set of options that must be supported by an OpenCL compiler when building program executables online or offline. These may be extended by a set of vendor- or platform-specific options.
clBuildProgram.
Predefine name as a macro, with definition 1.
The contents of definition are tokenized and processed as if they appeared during translation phase three in a `#define' directive. In particular, the definition will be truncated by embedded newline characters.
Add the directory dir to the list of directories to be searched for header files.
Treat double precision floating-point constant as single precision constant.
This option controls how single precision and double precision denormalized numbers are handled. If specified as a build option, the single precision denormalized numbers may be flushed to zero and if the optional extension for double precision is supported, double precision denormalized numbers may also be flushed to zero. This is intended to be a performance hint and the OpenCL compiler can choose not to flush denorms to zero if the device supports single precision (or double precision) denormalized numbers.
This option is ignored for single precision numbers if the device does not support single precision denormalized numbers i.e. CL_FP_DENORM bit is not set in CL_DEVICE_SINGLE_FP_CONFIG.
This option is ignored for double precision numbers if the device does not support double precision or if it does support double precison but CL_FP_DENORM bit is not set in CL_DEVICE_DOUBLE_FP_CONFIG.
This flag only applies for scalar and vector single precision floating-point variables and computations on these floating-point variables inside a program. It does not apply to reading from or writing to image objects.
This option disables all optimizations. The default is optimizations are enabled.
This option allows the compiler to assume the strictest aliasing rules.
The following options control compiler behavior regarding floating-point arithmetic. These options trade off between performance and correctness and must be specifically enabled. These options are not turned on by default since it can result in incorrect output for programs which depend on an exact implementation of IEEE 754 rules/specifications for math functions.
Allow a * b + c to be replaced by a mad. The mad computes a * b + c with reduced accuracy. For example, some OpenCL devices implement mad as truncate the result of a * b before adding it to c.
Allow optimizations for floating-point arithmetic that ignore the signedness of zero. IEEE 754 arithmetic specifies the behavior of distinct +0.0 and -0.0 values, which then prohibits simplification of expressions such as x+0.0 or 0.0*x (even with -clfinite-math only). This option implies that the sign of a zero result isn't significant.
Allow optimizations for floating-point arithmetic that (a) assume that arguments and results are valid, (b) may violate IEEE 754 standard and (c) may violate the OpenCL numerical compliance requirements as defined in section 7.4 for single-precision floating-point, section 9.3.9 for double-precision floating-point, and edge case behavior in section 7.5. This option includes the -cl-no-signed-zeros and -cl-mad-enable options.
Allow optimizations for floating-point arithmetic that assume that arguments and results are not NaNs or ±∞. This option may violate the OpenCL numerical compliance requirements defined in in section 7.4 for single-precision floating-point, section 9.3.9 for double-precision floating-point, and edge case behavior in section 7.5.
Sets the optimization options -cl-finite-math-only and -cl-unsafe-math-optimizations.
This allows optimizations for floating-point arithmetic that may violate the IEEE 754
standard and the OpenCL numerical compliance requirements defined in the specification in section 7.4 for single-precision floating-point, section 9.3.9 for double-precision floating-point,
and edge case behavior in section 7.5. This option causes the preprocessor macro
__FAST_RELAXED_MATH__ to be defined in the OpenCL program.
Inhibit all warning messages.
Make all warnings into errors.
clBuildProgram returns CL_SUCCESS if the function is executed successfully. Otherwise, it returns one of the following errors:
program is not a valid program object.
device_list is NULL and num_devices is greater than zero, or if device_list is not NULL and num_devices is zero.
pfn_notify is NULL but user_data is not NULL.
device_list are not in the list of devices associated with program.
program is created with clCreateWithProgramWithBinary and
devices listed in device_list do not have a valid program binary loaded.
options are invalid.
device_list by a previous call to clBuildProgram for program has not
completed.
program is created with
clCreateProgramWithSource and a compiler is not available i.e.
CL_DEVICE_COMPILER_AVAILABLE specified in the table of OpenCL Device Queries for clGetDeviceInfo is set to CL_FALSE.
clBuildProgram does not return until the build has
completed.
program.
Copyright © 2007-2009 The Khronos Group Inc.
Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and/or associated documentation files (the
"Materials"), to deal in the Materials without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Materials, and to
permit persons to whom the Materials are furnished to do so, subject to
the condition that this copyright notice and permission notice shall be included
in all copies or substantial portions of the Materials.