def __init__(self,
original_kernel,
device=0,
platform=0,
lang=None,
quiet=False,
compiler_options=None,
iterations=7):
""" Instantiate the DeviceInterface, based on language in kernel source
:param original_kernel: The source of the kernel as passed to tune_kernel
:type original_kernel: kernel source as a string or a list of strings denoting filenames
:param device: CUDA/OpenCL device to use, in case you have multiple
CUDA-capable GPUs or OpenCL devices you may use this to select one,
0 by default. Ignored if you are tuning host code by passing lang="C".
:type device: int
:param platform: OpenCL platform to use, in case you have multiple
OpenCL platforms you may use this to select one,
0 by default. Ignored if not using OpenCL.
:type device: int
:param lang: Specifies the language used for GPU kernels. The kernel_tuner
automatically detects the language, but if it fails, you may specify
the language using this argument, currently supported: "CUDA", "OpenCL", or "C"
:type lang: string
:param compiler_options: The compiler options to use when compiling kernels for this device.
:type compiler_options: list of strings
:param iterations: Number of iterations to be used when benchmarking using this device.
:type iterations: int
"""
logging.debug('DeviceInterface instantiated, lang=%s', lang)
lang = util.detect_language(lang, original_kernel)
if lang == "CUDA":
dev = CudaFunctions(device,
compiler_options=compiler_options,
iterations=iterations)
elif lang == "OpenCL":
dev = OpenCLFunctions(device,
platform,
compiler_options=compiler_options,
iterations=iterations)
elif lang == "C":
dev = CFunctions(compiler_options=compiler_options,
iterations=iterations)
else:
raise Exception(
"Sorry, support for languages other than CUDA, OpenCL, or C is not implemented yet"
)
self.lang = lang
self.dev = dev
self.name = dev.name
if not quiet:
print("Using: " + self.dev.name)
def __init__(self, kernel_sources, lang):
if not isinstance(kernel_sources, list):
kernel_sources = [kernel_sources]
self.kernel_sources = kernel_sources
if lang is None:
if callable(self.kernel_sources[0]):
raise TypeError("Please specify language when using a code generator function")
kernel_string = self.get_kernel_string(0)
lang = util.detect_language(kernel_string)
# The validity of lang is checked later, when creating the DeviceInterface
self.lang = lang
def __init__(self, original_kernel, device=0, platform=0, lang=None, quiet=False, compiler=None, compiler_options=None, iterations=7):
""" Instantiate the DeviceInterface, based on language in kernel source
:param original_kernel: The source of the kernel as passed to tune_kernel
:type original_kernel: kernel source as a string or a list of strings denoting filenames
:param device: CUDA/OpenCL device to use, in case you have multiple
CUDA-capable GPUs or OpenCL devices you may use this to select one,
0 by default. Ignored if you are tuning host code by passing lang="C".
:type device: int
:param platform: OpenCL platform to use, in case you have multiple
OpenCL platforms you may use this to select one,
0 by default. Ignored if not using OpenCL.
:type device: int
:param lang: Specifies the language used for GPU kernels. The kernel_tuner
automatically detects the language, but if it fails, you may specify
the language using this argument, currently supported: "CUDA", "OpenCL", or "C"
:type lang: string
:param compiler_options: The compiler options to use when compiling kernels for this device.
:type compiler_options: list of strings
:param iterations: Number of iterations to be used when benchmarking using this device.
:type iterations: int
:param times: Return the execution time of all iterations.
:type times: bool
"""
logging.debug('DeviceInterface instantiated, lang=%s', lang)
lang = util.detect_language(lang, original_kernel)
if lang == "CUDA":
dev = CudaFunctions(device, compiler_options=compiler_options, iterations=iterations)
elif lang == "OpenCL":
dev = OpenCLFunctions(device, platform, compiler_options=compiler_options, iterations=iterations)
elif lang == "C":
dev = CFunctions(compiler=compiler, compiler_options=compiler_options, iterations=iterations)
else:
raise Exception("Sorry, support for languages other than CUDA, OpenCL, or C is not implemented yet")
self.lang = lang
self.dev = dev
self.units = dev.units
self.name = dev.name
if not quiet:
print("Using: " + self.dev.name)