void create_and_write_diff_image(DiffRecord* drp,
DiffMetricProc dmp,
const int colorThreshold,
const SkString& outputDir,
const SkString& filename) {
const int w = drp->fBase.fBitmap.width();
const int h = drp->fBase.fBitmap.height();
if (w != drp->fComparison.fBitmap.width() || h != drp->fComparison.fBitmap.height()) {
drp->fResult = DiffRecord::kDifferentSizes_Result;
} else {
drp->fDifference.fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
drp->fDifference.fBitmap.allocPixels();
drp->fWhite.fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
drp->fWhite.fBitmap.allocPixels();
SkASSERT(DiffRecord::kUnknown_Result == drp->fResult);
compute_diff(drp, dmp, colorThreshold);
SkASSERT(DiffRecord::kUnknown_Result != drp->fResult);
}
if (outputDir.isEmpty()) {
drp->fDifference.fStatus = DiffResource::kUnspecified_Status;
drp->fWhite.fStatus = DiffResource::kUnspecified_Status;
} else {
drp->fDifference.fFilename = filename_to_diff_filename(filename);
drp->fDifference.fFullPath = outputDir;
drp->fDifference.fFullPath.append(drp->fDifference.fFilename);
drp->fDifference.fStatus = DiffResource::kSpecified_Status;
drp->fWhite.fFilename = filename_to_white_filename(filename);
drp->fWhite.fFullPath = outputDir;
drp->fWhite.fFullPath.append(drp->fWhite.fFilename);
drp->fWhite.fStatus = DiffResource::kSpecified_Status;
if (DiffRecord::kDifferentPixels_Result == drp->fResult) {
if (write_bitmap(drp->fDifference.fFullPath, drp->fDifference.fBitmap)) {
drp->fDifference.fStatus = DiffResource::kExists_Status;
} else {
drp->fDifference.fStatus = DiffResource::kDoesNotExist_Status;
}
if (write_bitmap(drp->fWhite.fFullPath, drp->fWhite.fBitmap)) {
drp->fWhite.fStatus = DiffResource::kExists_Status;
} else {
drp->fWhite.fStatus = DiffResource::kDoesNotExist_Status;
}
}
}
}
int main(int argc, char *argv[]) {
/* default to UArray2 methods */
A2Methods_T methods = uarray2_methods_plain;
assert(methods);
/* default to best map */
A2Methods_mapfun *map = methods->map_default;
assert(map);
assert (argc <= 3);
FILE *fp1, *fp2;
Pnm_ppm image1, image2;
fp1 = open_file(argc, argv[1]);
fp2 = open_file(argc, argv[2]);
image1 = Pnm_ppmread(fp1, methods);
image2 = Pnm_ppmread(fp2, methods);
if (!valid_dims(image1, image2)) {
fprintf(stderr, "Invalid Dimensions\n");
fprintf(stdout, "1.0\n");
} else {
compute_diff(image1, image2);
}
fclose(fp1);
fclose(fp2);
Pnm_ppmfree(&image1);
Pnm_ppmfree(&image2);
return 0;
}
void do_parent(int child) {
fd_set fds_read;
struct timeval tv, start_time, end_time;
int retval;
/* Install signal handler for SIGUSR1 */
signal(SIGUSR1, catch_signal);
/* Parent and child share an anonymous pipe. Select for read and wait for the
timeout to occur. We wait for DO_PAUSE seconds. Let's see if that's
approximately right.*/
FD_ZERO(&fds_read);
FD_SET(fd_ap[0], &fds_read);
tv.tv_sec = DO_PAUSE;
tv.tv_usec = 0;
(void) gettimeofday(&start_time, NULL); /* Record starting time */
retval = select(fd_ap[0]+1, &fds_read, NULL, NULL, &tv);
(void) gettimeofday(&end_time, NULL); /* Record ending time */
/* Did we time out? */
if(retval != 0) e(1, "Should have timed out");
/* Approximately right? The standard does not specify how precise the timeout
should be. Instead, the granularity is implementation-defined. In this
test we assume that the difference should be no more than half a second.*/
if(compute_diff(start_time, end_time, DO_PAUSE) > DO_DELTA)
e(2, "Time difference too large");
/* Let's wait for another DO_PAUSE seconds, expressed as microseconds */
FD_ZERO(&fds_read);
FD_SET(fd_ap[0], &fds_read);
tv.tv_sec = 0;
tv.tv_usec = DO_PAUSE * 1000000L;
(void) gettimeofday(&start_time, NULL); /* Record starting time */
retval = select(fd_ap[0]+1, &fds_read, NULL, NULL, &tv);
(void) gettimeofday(&end_time, NULL); /* Record ending time */
if(retval != 0) e(3, "Should have timed out");
if(compute_diff(start_time, end_time, DO_PAUSE) > DO_DELTA)
e(4, "Time difference too large");
/* Let's wait for another DO_PAUSE seconds, expressed in seconds and micro
seconds. */
FD_ZERO(&fds_read);
FD_SET(fd_ap[0], &fds_read);
tv.tv_sec = DO_PAUSE - 1;
tv.tv_usec = (DO_PAUSE - tv.tv_sec) * 1000000L;
(void) gettimeofday(&start_time, NULL); /* Record starting time */
retval = select(fd_ap[0]+1, &fds_read, NULL, NULL, &tv);
(void) gettimeofday(&end_time, NULL); /* Record ending time */
if(retval != 0) e(5, "Should have timed out");
if(compute_diff(start_time, end_time, DO_PAUSE) > DO_DELTA)
e(6, "Time difference too large");
/* Finally, we test if our timeout is interrupted by a signal */
FD_ZERO(&fds_read);
FD_SET(fd_ap[0], &fds_read);
tv.tv_sec = DO_TIMEOUT;
tv.tv_usec = 0;
(void) gettimeofday(&start_time, NULL); /* Record starting time */
retval = select(fd_ap[0]+1, &fds_read, NULL, NULL, &tv);
(void) gettimeofday(&end_time, NULL); /* Record ending time */
if(retval != -1) e(7, "Should have been interrupted");
if(compute_diff(start_time, end_time, DO_TIMEOUT) < DO_DELTA)
e(8, "Failed to get interrupted by a signal");
if(!got_signal) e(9, "Failed to get interrupted by a signal");
waitpid(child, &retval, 0);
exit(errct);
}
void gl_loop()
{
static int i = 0;
static int dir = 1;
//////////// CL STUFF
acquire_gl_tex(cl_tex_mem);
// glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
pthread_barrier_wait(&thread_barrier);
// cl_int arg = i%STEPS;
// err = clSetKernelArg(clkernelinfo.kernel,1,sizeof(cl_int),&arg);
// if (error_cl(err, "clSetKernelArg 1"))
// exit(1);
// execute_cl(clkernelinfo);
// ////////////////// Immediate mode textured quad
// release_gl_tex(cl_tex_mem);
pthread_barrier_wait(&thread_barrier);
release_gl_tex(cl_tex_mem);
glBindTexture(GL_TEXTURE_2D, gl_tex);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(1.0,1.0);
glVertex2f(1.0,1.0);
glTexCoord2f(1.0,0.0);
glVertex2f(1.0,-1.0);
glTexCoord2f(0.0,1.0);
glVertex2f(-1.0,1.0);
glTexCoord2f(0.0,0.0);
glVertex2f(-1.0,-1.0);
glEnd();
////////////////////////////////////////////
i += dir;
if (!(i % (STEPS-1))){
dir *= -1;
#ifdef __linux__
timespec _tp;
clock_gettime(CLOCK_MONOTONIC, &_tp);
double msec = compute_diff(tp, _tp);
#elif defined _WIN32
__int64 _tp;
_tp = snap_time();
double msec = compute_diff(tp,_tp);
#endif
std::cout << "Time elapsed: "
<< msec << " milliseconds "
<< "\t("
<< int(STEPS / (msec/1000))
<< " FPS) \r" ;
std::flush(std::cout);
tp = _tp;
}
glutSwapBuffers();
// std::cout << "Main thread reporting to barrier!" << std::endl;
// pthread_barrier_wait(&thread_barrier);
// std::cout << "Main thread exiting barrier!" << std::endl;
}
int main( int argc, char** argv ) {
int pnum, pid;
double elapsed_time;
float *A, *B, *C, *Cans;
float diff;
int n = 2048;
int i, j, k;
unsigned short seed[3];
if( argc != 1 ){
if( argc == 2 ){
n = atoi(argv[1]);
}
else{
printf("mmul [n]\n");
exit(0);
}
}
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &pnum);
MPI_Comm_rank(MPI_COMM_WORLD, &pid);
//printf("Processor %d out of %d says hi!\n", pid, pnum);
if( pid == 0 ){
//printf("Intializing matrix size : %d x %d x %d\n", n, n, n);
A = (float*)malloc( sizeof(float) * n * n );
B = (float*)malloc( sizeof(float) * n * n );
C = (float*)malloc( sizeof(float) * n * n );
seed[0] = 0; seed[1] = 1; seed[2] = 2;
for (i=0; i<n; i++) {
for (k=0; k<n; k++) {
A(i,k) = (float)erand48(seed);
}
}
for (k=0; k<n; k++) {
for (j=0; j<n; j++) {
B(k,j) = (float)erand48(seed);
}
}
}
MPI_Barrier(MPI_COMM_WORLD);
elapsed_time = -1*MPI_Wtime();
//Please modify the content of this function
mmul(A, B, C, n);
MPI_Barrier(MPI_COMM_WORLD);
elapsed_time += MPI_Wtime();
if( pid == 0 ){
printf("Elapsed Time : %f secs\n", elapsed_time);
Cans = (float*)malloc( sizeof(float) * n * n );
mmul1(A, B, Cans, n);
diff = compute_diff(C, Cans, n);
printf("Performance : %.2f GFlops\n", 2.0*n*n*n/elapsed_time/1000000000 );
printf("Result Diff : %.3f\%\n", diff*100 );
free(A);
free(B);
free(C);
free(Cans);
}