Module openj9.cuda
Package com.ibm.cuda

Class CudaFunction

  • public final class CudaFunction
extends Object
    The CudaFunction class represents a kernel entry point found in a specific CudaModule loaded on a CUDA-capable device.

    • Field Detail

      • ATTRIBUTE_BINARY_VERSION

        public static final int ATTRIBUTE_BINARY_VERSION
        The binary architecture version for which the function was compiled. This value is the major binary version * 10 + the minor binary version, so a binary version 1.3 function would return the value 13. Note that this will return a value of 10 for legacy cubins that do not have a properly-encoded binary architecture version.
        See Also:
        Constant Field Values

      • ATTRIBUTE_CONST_SIZE_BYTES

        public static final int ATTRIBUTE_CONST_SIZE_BYTES
        The size in bytes of user-allocated constant memory required by this function.
        See Also:
        Constant Field Values

      • ATTRIBUTE_LOCAL_SIZE_BYTES

        public static final int ATTRIBUTE_LOCAL_SIZE_BYTES
        The size in bytes of local memory used by each thread of this function.
        See Also:
        Constant Field Values

      • ATTRIBUTE_MAX_THREADS_PER_BLOCK

        public static final int ATTRIBUTE_MAX_THREADS_PER_BLOCK
        The maximum number of threads per block, beyond which a launch of the function would fail. This number depends on both the function and the device on which the function is currently loaded.
        See Also:
        Constant Field Values

      • ATTRIBUTE_NUM_REGS

        public static final int ATTRIBUTE_NUM_REGS
        The number of registers used by each thread of this function.
        See Also:
        Constant Field Values

      • ATTRIBUTE_PTX_VERSION

        public static final int ATTRIBUTE_PTX_VERSION
        The PTX virtual architecture version for which the function was compiled. This value is the major PTX version * 10 + the minor PTX version, so a PTX version 1.3 function would return the value 13. Note that this may return the undefined value of 0 for cubins compiled prior to CUDA 3.0.
        See Also:
        Constant Field Values

      • ATTRIBUTE_SHARED_SIZE_BYTES

        public static final int ATTRIBUTE_SHARED_SIZE_BYTES
        The size in bytes of statically-allocated shared memory required by this function. This does not include dynamically-allocated shared memory requested by the user at runtime.
        See Also:
        Constant Field Values

    • Method Detail

      • getAttribute

        public int getAttribute​(int attribute)
                 throws CudaException
        Returns the value of the specified @{code attribute}.
        Parameters:
        attribute - the attribute to be queried (see ATTRIBUTE_XXX)
        Returns:
        the attribute value
        Throws:
        CudaException - if a CUDA exception occurs

      • setCacheConfig

        public void setCacheConfig​(CudaDevice.CacheConfig config)
                    throws CudaException
        Configures the cache for this function.
        Parameters:
        config - the desired cache configuration
        Throws:
        CudaException - if a CUDA exception occurs

      • setSharedMemConfig

        public void setSharedMemConfig​(CudaDevice.SharedMemConfig config)
                        throws CudaException
        Configures the shared memory of this function.
        Parameters:
        config - the desired shared memory configuration
        Throws:
        CudaException - if a CUDA exception occurs