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Add option to measure last iterration #62

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Add option to measure last iterration #62

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1e62a62
Parametrize minimum required runtime in seconds
mkurc-ant Feb 12, 2024
88caed1
Add an option to allow measuring cycles of the last iteration
mkurc-ant Feb 13, 2024
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41 changes: 38 additions & 3 deletions core_main.c
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Original file line number Diff line number Diff line change
Expand Up @@ -119,6 +119,10 @@ main(int argc, char *argv[])
ee_s16 known_id = -1, total_errors = 0;
ee_u16 seedcrc = 0;
CORE_TICKS total_time;
#if MEASURE_ONE_ITER
ee_u32 org_iterations;
CORE_TICKS sub_total_time;
#endif
core_results results[MULTITHREAD];
#if (MEM_METHOD == MEM_STACK)
ee_u8 stack_memblock[TOTAL_DATA_SIZE * MULTITHREAD];
Expand Down Expand Up @@ -278,11 +282,32 @@ for (i = 0; i < MULTITHREAD; i++)
{
core_stop_parallel(&results[i]);
}
stop_time();
total_time = get_time();
#elif MEASURE_ONE_ITER
/* Must have more than one iterations */
if (results[0].iterations <= 1) {
ee_printf("Need more than one iteration\n");
return MAIN_RETURN_VAL;
}
/* Run N-1 iterations, measure sub-total time */
org_iterations = results[0].iterations;
results[0].iterations--;
iterate(&results[0]);
stop_time();
sub_total_time = get_time();
/* Run 1 iteration, measure time, calculate total time */
start_time();
results[0].iterations = 1;
iterate(&results[0]);
stop_time();
total_time = sub_total_time + get_time();
results[0].iterations = org_iterations;
#else
iterate(&results[0]);
#endif
stop_time();
total_time = get_time();
#endif
/* get a function of the input to report */
seedcrc = crc16(results[0].seed1, seedcrc);
seedcrc = crc16(results[0].seed2, seedcrc);
Expand Down Expand Up @@ -370,13 +395,23 @@ for (i = 0; i < MULTITHREAD; i++)
default_num_contexts * results[0].iterations
/ time_in_secs(total_time));
#endif
if (time_in_secs(total_time) < 10)
if (time_in_secs(total_time) < CORE_MIN_RUNTIME)
{
ee_printf(
"ERROR! Must execute for at least 10 secs for a valid result!\n");
"ERROR! Must execute for at least %d secs for a valid result!\n",
CORE_MIN_RUNTIME);
total_errors++;
}

#if MEASURE_ONE_ITER
ee_printf("Iteration ticks : %lu\n", total_time - sub_total_time);
#if HAS_FLOAT
ee_printf("Iteration time(s): %f\n", time_in_secs(total_time - sub_total_time));
#else
ee_printf("Iteration time(s): %d\n", time_in_secs(total_time - sub_total_time));
#endif
#endif

ee_printf("Iterations : %lu\n",
(long unsigned)default_num_contexts * results[0].iterations);
ee_printf("Compiler version : %s\n", COMPILER_VERSION);
Expand Down
9 changes: 9 additions & 0 deletions coremark.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,10 @@ Original Author: Shay Gal-on
#define ee_printf printf
#endif

#ifndef CORE_MIN_RUNTIME
#define CORE_MIN_RUNTIME 10
#endif

/* Actual benchmark execution in iterate */
void *iterate(void *pres);

Expand Down Expand Up @@ -181,3 +185,8 @@ ee_u32 core_init_matrix(ee_u32 blksize,
ee_s32 seed,
mat_params *p);
ee_u16 core_bench_matrix(mat_params *p, ee_s16 seed, ee_u16 crc);

/* Single iteration time measurement */
#ifndef MEASURE_ONE_ITER
#define MEASURE_ONE_ITER 0
#endif