Module openj9.cuda
Package com.ibm.cuda

Class CudaFunction

java.lang.Object
com.ibm.cuda.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 Details

    • 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.
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    • 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.
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    • 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.
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    • 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.
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    • ATTRIBUTE_NUM_REGS

      public static final int ATTRIBUTE_NUM_REGS
      The number of registers used by each thread of this function.
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    • 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.
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    • 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.
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  • Method Details

    • 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