Field Detail

• context

  public org.jocl.cl_context context

• size

  public CLFFTPlan.CLFFTDim3 size

• dim

  int dim

• format

  CLFFTPlan.CLFFTDataFormat format

• kernel_string

  java.lang.StringBuilder kernel_string

• program

  org.jocl.cl_program program

• kernel_list

  java.util.LinkedList<CLFFTPlan.CLFFTKernelInfo> kernel_list

• twist_kernel

  org.jocl.cl_kernel twist_kernel

• temp_buffer_needed

  boolean temp_buffer_needed

• last_batch_size

  int last_batch_size

• tempmemobj

  org.jocl.cl_mem tempmemobj

• tempmemobj_real

  org.jocl.cl_mem tempmemobj_real

• tempmemobj_imag

  org.jocl.cl_mem tempmemobj_imag

• max_localmem_fft_size

  int max_localmem_fft_size

• max_work_item_per_workgroup

  int max_work_item_per_workgroup

• max_radix

  int max_radix

• min_mem_coalesce_width

  int min_mem_coalesce_width

• num_local_mem_banks

  int num_local_mem_banks

• baseKernels

  static java.lang.String baseKernels

• twistKernelInterleaved

  static java.lang.String twistKernelInterleaved

• twistKernelPlannar

  static java.lang.String twistKernelPlannar

Constructor Detail

• CLFFTPlan

  public CLFFTPlan​(org.jocl.cl_context context,
                   int[] sizes,
                   CLFFTPlan.CLFFTDataFormat dataFormat,
                   org.jocl.cl_device_id gpu)
            throws CLFFTPlan.InvalidContextException

  Create a new FFT plan. Use the matching executeInterleaved() or executePlanar() depending on the dataFormat specified.

  Parameters:

  context -

  sizes - Array of sizes for each dimension. The length of array defines how many dimensions there are.

  dataFormat - Data format, InterleavedComplex (array of complex) or SplitComplex (separate planar arrays).

  Throws:

  zephyr.cl.CLFFTPlan.InvalidContextException

  CLFFTPlan.InvalidContextException

Method Detail

• release

  public void release()

  Release system resources.

• allocateTemporaryBufferInterleaved

  void allocateTemporaryBufferInterleaved​(int batchSize)

• executeInterleaved

  public void executeInterleaved​(org.jocl.cl_command_queue queue,
                                 int batchSize,
                                 CLFFTPlan.CLFFTDirection dir,
                                 org.jocl.cl_mem data_in,
                                 org.jocl.cl_mem data_out,
                                 org.jocl.cl_event condition,
                                 org.jocl.cl_event event)

  Calculate FFT on interleaved complex data.

  Parameters:

  queue -

  batchSize - How many instances to calculate. Use 1 for a single FFT.

  dir - Direction of calculation, Forward or Inverse.

  data_in - Input buffer.

  data_out - Output buffer. May be the same as data_in for in-place transform.

  condition - Condition to wait for. NOT YET IMPLEMENTED.

  event - Event to wait for completion. NOT YET IMPLEMENTED.

• allocateTemporaryBufferPlanar

  void allocateTemporaryBufferPlanar​(int batchSize)

• executePlanar

  public void executePlanar​(org.jocl.cl_command_queue queue,
                            int batchSize,
                            CLFFTPlan.CLFFTDirection dir,
                            org.jocl.cl_mem data_in_real,
                            org.jocl.cl_mem data_in_imag,
                            org.jocl.cl_mem data_out_real,
                            org.jocl.cl_mem data_out_imag,
                            org.jocl.cl_event contition,
                            org.jocl.cl_event event)

  Calculate FFT of planar data.

  Parameters:

  queue -

  batchSize -

  dir -

  data_in_real -

  data_in_imag -

  data_out_real -

  data_out_imag -

  contition -

  event -

• dumpPlan

  public void dumpPlan​(java.io.OutputStream os)

  Dump the planner result to the output stream.

  Parameters:

  os - if null, System.out is used.

• getKernelWorkDimensions

  CLFFTPlan.WorkDimensions getKernelWorkDimensions​(CLFFTPlan.CLFFTKernelInfo kernelInfo,
                                                   int batchSize)

• getBlockConfigAndKernelString

  private void getBlockConfigAndKernelString()

• createKernelList

  private void createKernelList()

• getPatchingRequired

  private boolean getPatchingRequired​(org.jocl.cl_device_id devices)

• getMaxKernelWorkGroupSize

  long getMaxKernelWorkGroupSize​(org.jocl.cl_device_id devices)

• log2

  int log2​(int x)

• getRadixArray

  int getRadixArray​(int n,
                    int[] radixArray,
                    int maxRadix)

• insertHeader

  void insertHeader​(java.lang.StringBuilder kernelString,
                    java.lang.String kernelName,
                    CLFFTPlan.CLFFTDataFormat dataFormat)

• insertVariables

  void insertVariables​(java.lang.StringBuilder kStream,
                       int maxRadix)

• formattedLoad

  void formattedLoad​(java.lang.StringBuilder kernelString,
                     int aIndex,
                     int gIndex,
                     CLFFTPlan.CLFFTDataFormat dataFormat)

• formattedStore

  void formattedStore​(java.lang.StringBuilder kernelString,
                      int aIndex,
                      int gIndex,
                      CLFFTPlan.CLFFTDataFormat dataFormat)

• insertGlobalLoadsAndTranspose

  int insertGlobalLoadsAndTranspose​(java.lang.StringBuilder kernelString,
                                    int N,
                                    int numWorkItemsPerXForm,
                                    int numXFormsPerWG,
                                    int R0,
                                    int mem_coalesce_width,
                                    CLFFTPlan.CLFFTDataFormat dataFormat)

• insertGlobalStoresAndTranspose

  int insertGlobalStoresAndTranspose​(java.lang.StringBuilder kernelString,
                                     int N,
                                     int maxRadix,
                                     int Nr,
                                     int numWorkItemsPerXForm,
                                     int numXFormsPerWG,
                                     int mem_coalesce_width,
                                     CLFFTPlan.CLFFTDataFormat dataFormat)

• insertfftKernel

  void insertfftKernel​(java.lang.StringBuilder kernelString,
                       int Nr,
                       int numIter)

• insertTwiddleKernel

  void insertTwiddleKernel​(java.lang.StringBuilder kernelString,
                           int Nr,
                           int numIter,
                           int Nprev,
                           int len,
                           int numWorkItemsPerXForm)

• getPadding

  CLFFTPlan.fftPadding getPadding​(int numWorkItemsPerXForm,
                                  int Nprev,
                                  int numWorkItemsReq,
                                  int numXFormsPerWG,
                                  int Nr,
                                  int numBanks)

• insertLocalStores

  void insertLocalStores​(java.lang.StringBuilder kernelString,
                         int numIter,
                         int Nr,
                         int numWorkItemsPerXForm,
                         int numWorkItemsReq,
                         int offset,
                         java.lang.String comp)

• insertLocalLoads

  void insertLocalLoads​(java.lang.StringBuilder kernelString,
                        int n,
                        int Nr,
                        int Nrn,
                        int Nprev,
                        int Ncurr,
                        int numWorkItemsPerXForm,
                        int numWorkItemsReq,
                        int offset,
                        java.lang.String comp)

• insertLocalLoadIndexArithmatic

  void insertLocalLoadIndexArithmatic​(java.lang.StringBuilder kernelString,
                                      int Nprev,
                                      int Nr,
                                      int numWorkItemsReq,
                                      int numWorkItemsPerXForm,
                                      int numXFormsPerWG,
                                      int offset,
                                      int midPad)

• insertLocalStoreIndexArithmatic

  void insertLocalStoreIndexArithmatic​(java.lang.StringBuilder kernelString,
                                       int numWorkItemsReq,
                                       int numXFormsPerWG,
                                       int Nr,
                                       int offset,
                                       int midPad)

• createLocalMemfftKernelString

  void createLocalMemfftKernelString()

• getGlobalRadixInfo

  int getGlobalRadixInfo​(int n,
                         int[] radix,
                         int[] R1,
                         int[] R2)

• createGlobalFFTKernelString

  void createGlobalFFTKernelString​(int n,
                                   int BS,
                                   CLFFTPlan.CLFFTKernelDir dir,
                                   int vertBS)

• FFT1D

  void FFT1D​(CLFFTPlan.CLFFTKernelDir dir)