fft_fpga.h

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/*----------------------------------------------------------------------------*/
/*  CP2K: A general program to perform molecular dynamics simulations         */
/*  Copyright 2000-2024 CP2K developers group <https://cp2k.org>              */
/*                                                                            */
/*  SPDX-License-Identifier: GPL-2.0-or-later                                 */
/*----------------------------------------------------------------------------*/
 
#ifndef FFT_FPGA_H
#define FFT_FPGA_H
/*******************************************************************************
 * \author Arjun Ramaswami
 ******************************************************************************/
#if defined(__PW_FPGA)
 
typedef struct {
  double x;
  double y;
} double2;
 
typedef struct {
  float x;
  float y;
} float2;
 
#ifdef __PW_FPGA_SP
typedef float2 cmplx;
#else
typedef double2 cmplx;
#endif
 
// Initialize FPGA
int pw_fpga_initialize_();
 
// Finalize FPGA
void pw_fpga_final_();
 
// Single precision FFT3d procedure
void pw_fpga_fft3d_sp_(int direction, int N[3], cmplx *din);
 
// Double precision FFT3d procedure
void pw_fpga_fft3d_dp_(int direction, int N[3], cmplx *din);
 
// Check fpga bitstream present in directory
int pw_fpga_check_bitstream_(char *data_path, int N[3]);
 
// host variables
static cl_platform_id platform = NULL;
static cl_device_id *devices;
static cl_device_id device = NULL;
static cl_context context = NULL;
static cl_program program = NULL;
 
static cl_command_queue queue1 = NULL, queue2 = NULL, queue3 = NULL;
static cl_command_queue queue4 = NULL, queue5 = NULL, queue6 = NULL;
 
#endif
#endif