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/*
* Copyright (c) 2016 University of Cordoba and University of Illinois
* All rights reserved.
*
* Developed by: IMPACT Research Group
* University of Cordoba and University of Illinois
* http://impact.crhc.illinois.edu/
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* with the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* > Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimers.
* > Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimers in the
* documentation and/or other materials provided with the distribution.
* > Neither the names of IMPACT Research Group, University of Cordoba,
* University of Illinois nor the names of its contributors may be used
* to endorse or promote products derived from this Software without
* specific prior written permission.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH
* THE SOFTWARE.
*
*/
#include "common.h"
#include <math.h>
inline int compare_output(T *output, T *ref, int dim) {
int i;
for(i = 0; i < dim; i++) {
T diff = fabs(ref[i] - output[i]);
if((diff - 0.0f) > 0.00001f && diff > 0.01 * fabs(ref[i])) {
printf("line: %d ref: %f actual: %f diff: %f\n", i, ref[i], output[i], diff);
exit(EXIT_FAILURE);
}
}
return 0;
}
// Sequential transposition for comparison purposes
//[w][h/t][t] to [h/t][w][t]
static void trns_host(T* input, unsigned int A, unsigned int B, unsigned int b){
T* output = (T*) malloc(sizeof(T) * A * B * b);
unsigned int next;
for (unsigned int j = 0; j < b; j++){
for (unsigned int i = 0; i < A * B; i++){
next = (i * A) - (A * B - 1) * (i / B);
output[next * b + j] = input[i*b+j];
}
}
for (unsigned int k = 0; k < A * B * b; k++){
input[k] = output[k];
}
free(output);
}
inline void verify(T *input2, T *input, int height, int width, int tile_size) {
trns_host(input, height, width, tile_size);
compare_output(input2, input, height * width);
}
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