global.h

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/*
 * global.h
 *
 * Copyright (C) 2013-2016 Fabian Gieseke <fabian.gieseke@di.ku.dk>
 * License: GPL v2
 *
 */
#ifndef BRUTE_INCLUDE_GLOBAL_H_
#define BRUTE_INCLUDE_GLOBAL_H_

#define INT_TYPE int
#define UINT_TYPE unsigned int

#include "../../../include/opencl.h"
#include "../../../include/timing.h"
#include "../../../include/float.h"

#ifndef USE_GPU
#define USE_GPU 0
#endif

// use simple float if not specified otherwise
#ifndef USE_DOUBLE
#define USE_DOUBLE 0
#endif

// floating point precision (single/double)
#if USE_DOUBLE > 0
#define FLOAT_TYPE double
#define MAX_FLOAT_TYPE     1.7976931348623158e+308
#define MIN_FLOAT_TYPE     -1.7976931348623158e+308
#define TRANSPOSE_ARRAY transpose_array_double
#else
#define FLOAT_TYPE float
#define MAX_FLOAT_TYPE     3.402823466e+38
#define MIN_FLOAT_TYPE     -3.402823466e+38
#define TRANSPOSE_ARRAY transpose_array_float
#endif

// CPU and GPU functions are mapped via the following macros
#if USE_GPU > 0
#define INIT init_gpu
#define FIT fit_gpu
#define NEIGHBORS neighbors_gpu
#define FREE_RESOURCES free_resources_gpu
#else
#define INIT init_cpu
#define FIT fit_cpu
#define NEIGHBORS neighbors_cpu
#define FREE_RESOURCES free_resources_cpu
#endif

// struct for input parameters
typedef struct brute_parameters {

    INT_TYPE n_neighbors;
    INT_TYPE num_threads;
    char *kernels_source_directory;
    INT_TYPE verbosity_level;
    INT_TYPE platform_id;
    INT_TYPE device_id;

} BRUTE_PARAMETERS;


// record struct for patterns and CL stuff
typedef struct brute_record {

    // training patterns
    FLOAT_TYPE *Xtrain;

    // dimension of patterns
    INT_TYPE dXtrain;

    // number of training patters
    INT_TYPE nXtrain;

    // test patterns
    FLOAT_TYPE *Xtest;

    // number of test patterns
    UINT_TYPE nXtest;

    TIMER timers[25];
    INT_TYPE counters[10];

    // OpenCL stuff
    cl_platform_id gpu_platform;
    cl_device_id gpu_device;
    cl_context gpu_context;
    cl_command_queue gpu_command_queue;

    // OpenCL kernels
    cl_kernel gpu_brute_nearest_neighbors_kernel;
    cl_kernel gpu_brute_transpose_kernel;

    // OpenCL buffers
    cl_mem gpu_device_Xtrain;
    cl_mem gpu_device_d_mins_trans;
    cl_mem gpu_device_idx_mins_trans;


} BRUTE_RECORD;

#endif /* BRUTE_INCLUDE_GLOBAL_H_ */