int main(void)
{
// create memory system with 256 words and a direct-mapped cache
// with 8 sets and a block size of 4 words.
void *a = initializeMemorySystem(SIZE*SIZE, 1, 4, 8, 1);
if (a == NULL)
{
fprintf(stderr, "initializeMemorySystem failed!\n");
exit(-1);
}
// simulate two-dimensional array access in row-major order
int i, j, sum;
sum = 0;
for (i = 0; i < SIZE; i++)
for (j = 0; j < SIZE; j++)
sum += readInt(a, 0, i*SIZE+j);
// print stats
printf("First row-major order:\n");
printStatistics(a);
printf("\n");
// re-create the memory system
a = initializeMemorySystem(SIZE*SIZE, 1, 4, 8, 1);
if (a == NULL)
{
fprintf(stderr, "initializeMemorySystem failed!\n");
exit(-1);
}
// simulate two-dimensional array access in column-major order
sum = 0;
for (i = 0; i < SIZE; i++)
for (j = 0; j < SIZE; j++)
sum += readInt(a, 0, j*SIZE+i);
// print stats
printf("Second column-major order:\n");
printStatistics(a);
printf("\n");
return 0;
}
int main(void)
{
// create memory system with 256 words and a direct-mapped cache
// with 8 sets and a block size of 4 words.
void *a = initializeMemorySystem(SIZE, 1, 4, 8, 8, 1);
if (a == NULL)
{
fprintf(stderr, "initializeMemorySystem failed!\n");
exit(-1);
}
int i, sum, sum2;
// initialize the array
for (i = 0; i < SIZE; i++)
{
writeInt(a, 0, i, i);
}
// now sum it
sum = 0;
sum2 = 0;
for (i = 0; i < SIZE; i++)
{
int tmp = readInt(a, 0, i);
//printf("# %d %d\n", tmp, i);
sum += tmp;
sum2 += i;
}
//added to test multiple lines
//*******************************************
sum = 0;
sum2 = 0;
for (i = 0; i < SIZE; i++)
{
int tmp = readInt(a, 0, i);
// printf("# %d %d\n", tmp, i);
sum += tmp;
sum2 += i;
}
//********************************************
printf("sum is %d (should be %d)\n", sum, sum2);
// print stats
printf("\n");
printStatistics(a);
printf("\n");
return 0;
}
int main(void)
{
int i;
// create memory system with 256 words and NUM_THREADS caches
// with 8 sets, N lines per set and a block size of 4 words.
memSystem = initializeMemorySystem(SIZE, NUM_THREADS, 4, 8, N, NUM_LOCKS);
if (memSystem == NULL)
{
fprintf(stderr, "initializeMemorySystem failed!\n");
exit(-1);
}
if (pthread_mutex_init(&mu, NULL) != 0)
error("can't init mutex");
// now create NUM_THREADS threads to increment on location in the cache
for (i=0; i < NUM_THREADS; i++)
{
// create threads; DANGER: thread logical id (int) passed as "void *"
if (pthread_create(&pt[i], NULL, work, (void *) i) != 0)
error("error in thread create");
}
// wait for threads to finish
for (i=0; i < NUM_THREADS; i++)
{
if (pthread_join(pt[i], NULL))
{
error("error in thread join");
}
}
printf("answer is %d (should be %d)\n",
readInt(memSystem, 0, ADDRESS),
INC * NUM_THREADS);
// print stats
printf("\n");
printStatistics(memSystem);
printf("\n");
return 0;
}
int main(void)
{
// create memory system with 256 words and a direct-mapped cache
// with 8 sets and a block size of 4 words.
void *a = initializeMemorySystem(SIZE, 1, 4, 8, 1, 1);
if (a == NULL)
{
fprintf(stderr, "initializeMemorySystem failed!\n");
exit(-1);
}
int i;
// initialize the array
for (i = 0; i < SIZE; i++)
{
writeFloat(a, 0, i, ((float) i) + .5);
}
// now sum it
float sum = 0.0;
float sum2 = 0.0;
for (i = 0; i < SIZE; i++)
{
float tmp = readFloat(a, 0, i);
//printf("%d %f\n", i, tmp);
sum += tmp;
sum2 += (((float) i) + .5);
}
printf("sum is %f (should be %f)\n", sum, sum2);
// print stats
printf("\n");
printStatistics(a);
printf("\n");
return 0;
}
