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Allow different intensity per device 

and clean the old variables, no more required
master
Tanguy Pruvot 10 years ago
parent
768b5ccb76
commit
26b51a557b
27 changed files with 86 additions and 96 deletions
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  1. 3
      Algo256/blake256.cu
  2. 3
      Algo256/keccak256.cu
  3. 7
      JHA/jackpotcoin.cu
  4. 24
      api.cpp
  5. 40
      ccminer.cpp
  6. 7
      cuda.cpp
  7. 7
      cuda_nist5.cu
  8. 3
      fuguecoin.cpp
  9. 3
      groestlcoin.cpp
  10. 3
      heavy/heavy.cu
  11. 3
      lyra2/lyra2RE.cu
  12. 6
      miner.h
  13. 7
      myriadgroestl.cpp
  14. 3
      pentablake.cu
  15. 3
      quark/animecoin.cu
  16. 3
      quark/quarkcoin.cu
  17. 5
      qubit/deep.cu
  18. 3
      qubit/doom.cu
  19. 3
      qubit/qubit.cu
  20. 3
      x11/fresh.cu
  21. 3
      x11/s3.cu
  22. 3
      x11/x11.cu
  23. 3
      x13/x13.cu
  24. 3
      x15/whirlpool.cu
  25. 4
      x15/x14.cu
  26. 3
      x15/x15.cu
  27. 4
      x17/x17.cu

3
Algo256/blake256.cu
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@ -391,8 +391,7 @@ extern "C" int scanhash_blake256(int thr_id, uint32_t *pdata, const uint32_t *pt @@ -391,8 +391,7 @@ extern "C" int scanhash_blake256(int thr_id, uint32_t *pdata, const uint32_t *pt
uint32_t crcsum;
#endif
int intensity = (device_sm[device_map[thr_id]] > 500) ? 22 : 20;
uint32_t throughput = opt_work_size ? opt_work_size : (1 << intensity);
apiReportThroughput(thr_id, (uint32_t) throughput);
uint32_t throughput = device_intensity(thr_id, __func__, 1U << intensity);
throughput = min(throughput, max_nonce - first_nonce);
int rc = 0;

3
Algo256/keccak256.cu
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@ -41,8 +41,7 @@ extern "C" int scanhash_keccak256(int thr_id, uint32_t *pdata, @@ -41,8 +41,7 @@ extern "C" int scanhash_keccak256(int thr_id, uint32_t *pdata,
unsigned long *hashes_done)
{
const uint32_t first_nonce = pdata[19];
uint32_t throughput = opt_work_size ? opt_work_size : (1 << 21); // 256*256*8*4
apiReportThroughput(thr_id, throughput);
uint32_t throughput = device_intensity(thr_id, __func__, 1U << 21); // 256*256*8*4
throughput = min(throughput, (max_nonce - first_nonce));
if (opt_benchmark)

7
JHA/jackpotcoin.cu
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@ -93,13 +93,12 @@ extern "C" int scanhash_jackpot(int thr_id, uint32_t *pdata, @@ -93,13 +93,12 @@ extern "C" int scanhash_jackpot(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int throughput = (int) device_intensity(thr_id, __func__, 1U << 20);
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x000f;
int throughput = opt_work_size ? opt_work_size : (1 << 20); // 256*4096
apiReportThroughput(thr_id, (uint32_t) throughput);
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (!init[thr_id])
{
cudaSetDevice(device_map[thr_id]);

24
api.cpp
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@ -94,7 +94,6 @@ extern char *opt_api_allow; @@ -94,7 +94,6 @@ extern char *opt_api_allow;
extern int opt_api_listen; /* port */
extern uint32_t accepted_count;
extern uint32_t rejected_count;
extern uint32_t opt_work_adds;
extern int num_cpus;
extern struct stratum_ctx stratum;
extern char* rpc_user;
@ -877,24 +876,19 @@ void *api_thread(void *userdata) @@ -877,24 +876,19 @@ void *api_thread(void *userdata)
}
/* to be able to report the default value set in each algo */
void apiReportThroughput(int thr_id, uint32_t throughput)
void api_set_throughput(int thr_id, uint32_t throughput)
{
struct cgpu_info *cgpu = &thr_info[thr_id].gpu;
if (cgpu) {
uint32_t ws = throughput;
uint8_t i = 0;
cgpu->throughput = throughput;
if (opt_intensity == 0) {
uint8_t i = 0;
uint32_t ws = throughput;
while (ws > 1 && i++ < 32)
ws = ws >> 1;
cgpu->intensity_int = i;
cgpu->intensity = (float) i;
} else {
cgpu->intensity_int = (uint8_t) opt_intensity;
cgpu->intensity = (float) opt_intensity;
if (opt_work_adds) {
cgpu->intensity += ((float) opt_work_adds / (1U << opt_intensity));
}
while (ws > 1 && i++ < 32)
ws = ws >> 1;
cgpu->intensity_int = i;
cgpu->intensity = (float) i;
if (i && (1U << i) < throughput) {
cgpu->intensity += ((float) (throughput-(1U << i)) / (1U << i));
}
}
}

40
ccminer.cpp
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@ -171,6 +171,7 @@ int active_gpus; @@ -171,6 +171,7 @@ int active_gpus;
char * device_name[MAX_GPUS];
short device_map[MAX_GPUS] = { 0 };
long device_sm[MAX_GPUS] = { 0 };
uint32_t gpus_intensity[MAX_GPUS] = { 0 };
char *rpc_user = NULL;
static char *rpc_url;
static char *rpc_userpass;
@ -197,9 +198,6 @@ static double *thr_hashrates; @@ -197,9 +198,6 @@ static double *thr_hashrates;
uint64_t global_hashrate = 0;
double global_diff = 0.0;
int opt_statsavg = 30;
int opt_intensity = 0;
uint32_t opt_work_size = 0; /* default */
uint32_t opt_work_adds = 0;
// strdup on char* to allow a common free() if used
static char* opt_syslog_pfx = strdup(PROGRAM_NAME);
char *opt_api_allow = strdup("127.0.0.1"); /* 0.0.0.0 for all ips */
@ -1831,16 +1829,32 @@ static void parse_arg(int key, char *arg) @@ -1831,16 +1829,32 @@ static void parse_arg(int key, char *arg)
v = (uint32_t) d;
if (v < 0 || v > 31)
show_usage_and_exit(1);
opt_intensity = v;
if (v > 7) { /* 0 = default */
opt_work_size = (1 << v);
if ((d - v) > 0.0) {
opt_work_adds = (uint32_t) floor((d - v) * (1 << (v-8))) * 256;
opt_work_size += opt_work_adds;
applog(LOG_INFO, "Adding %u threads to intensity %u, %u cuda threads",
opt_work_adds, v, opt_work_size);
} else {
applog(LOG_INFO, "Intensity set to %u, %u cuda threads", v, opt_work_size);
{
int n = 0, adds = 0;
int ngpus = cuda_num_devices();
char * pch = strtok(arg,",");
if (pch == NULL) {
for (n=0; n < ngpus; n++)
gpus_intensity[n] = (1 << v);
break;
}
while (pch != NULL) {
d = atof(pch);
v = (uint32_t) d;
if (v > 7) { /* 0 = default */
gpus_intensity[n] = (1 << v);
if ((d - v) > 0.0) {
adds = (uint32_t) floor((d - v) * (1 << (v-8))) * 256;
gpus_intensity[n] += adds;
applog(LOG_INFO, "Adding %u threads to intensity %u, %u cuda threads",
adds, v, gpus_intensity[n]);
} else {
applog(LOG_INFO, "Intensity set to %u, %u cuda threads",
v, gpus_intensity[n]);
}
}
n++;
pch = strtok(NULL, ",");
}
}
break;

7
cuda.cpp
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@ -115,6 +115,13 @@ int cuda_finddevice(char *name) @@ -115,6 +115,13 @@ int cuda_finddevice(char *name)
return -1;
}
uint32_t device_intensity(int thr_id, const char *func, uint32_t defcount)
{
uint32_t throughput = gpus_intensity[thr_id] ? gpus_intensity[thr_id] : defcount;
api_set_throughput(thr_id, throughput);
return throughput;
}
// Zeitsynchronisations-Routine von cudaminer mit CPU sleep
typedef struct { double value[8]; } tsumarray;
cudaError_t MyStreamSynchronize(cudaStream_t stream, int situation, int thr_id)

7
cuda_nist5.cu
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@ -72,13 +72,12 @@ extern "C" int scanhash_nist5(int thr_id, uint32_t *pdata, @@ -72,13 +72,12 @@ extern "C" int scanhash_nist5(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int throughput = (int) device_intensity(thr_id, __func__, 1 << 20); // 256*256*16
throughput = min(throughput, (int) (max_nonce - first_nonce));
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x00FF;
int throughput = opt_work_size ? opt_work_size : (1 << 20); // 256*4096
apiReportThroughput(thr_id, (uint32_t) throughput);
throughput = min(throughput, (int) (max_nonce - first_nonce));
if (!init[thr_id])
{
cudaSetDevice(device_map[thr_id]);

3
fuguecoin.cpp
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@ -27,8 +27,7 @@ extern "C" int scanhash_fugue256(int thr_id, uint32_t *pdata, const uint32_t *pt @@ -27,8 +27,7 @@ extern "C" int scanhash_fugue256(int thr_id, uint32_t *pdata, const uint32_t *pt
{
uint32_t start_nonce = pdata[19]++;
int intensity = (device_sm[device_map[thr_id]] > 500) ? 22 : 19;
uint32_t throughput = opt_work_size ? opt_work_size : (1 << intensity);
apiReportThroughput(thr_id, throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << intensity); // 256*256*8
throughput = min(throughput, max_nonce - start_nonce);
if (opt_benchmark)

3
groestlcoin.cpp
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@ -64,8 +64,7 @@ extern "C" int scanhash_groestlcoin(int thr_id, uint32_t *pdata, const uint32_t @@ -64,8 +64,7 @@ extern "C" int scanhash_groestlcoin(int thr_id, uint32_t *pdata, const uint32_t
uint32_t max_nonce, unsigned long *hashes_done)
{
uint32_t start_nonce = pdata[19]++;
uint32_t throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*2048
apiReportThroughput(thr_id, throughput);
uint32_t throughput = device_intensity(thr_id, __func__, 1 << 19); // 256*256*8
throughput = min(throughput, max_nonce - start_nonce);
uint32_t *outputHash = (uint32_t*)malloc(throughput * 16 * sizeof(uint32_t));

3
heavy/heavy.cu
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@ -136,8 +136,7 @@ int scanhash_heavy(int thr_id, uint32_t *pdata, @@ -136,8 +136,7 @@ int scanhash_heavy(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
// CUDA will process thousands of threads.
int throughput = opt_work_size ? opt_work_size : (1 << 19) - 256; // 256*2048
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, (1U << 19) - 256);
throughput = min(throughput, (int)(max_nonce - first_nonce));
int rc = 0;

3
lyra2/lyra2RE.cu
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@ -63,8 +63,7 @@ extern "C" int scanhash_lyra2(int thr_id, uint32_t *pdata, @@ -63,8 +63,7 @@ extern "C" int scanhash_lyra2(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int intensity = (device_sm[device_map[thr_id]] >= 500 && !is_windows()) ? 18 : 17;
int throughput = opt_work_size ? opt_work_size : (1 << intensity); // 18=256*256*4;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << intensity); // 18=256*256*4;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

6
miner.h
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@ -378,7 +378,7 @@ extern int scanhash_x17(int thr_id, uint32_t *pdata, @@ -378,7 +378,7 @@ extern int scanhash_x17(int thr_id, uint32_t *pdata,
/* api related */
void *api_thread(void *userdata);
void apiReportThroughput(int thr_id, uint32_t throughput);
void api_set_throughput(int thr_id, uint32_t throughput);
struct cgpu_info {
uint8_t gpu_id;
@ -462,7 +462,6 @@ extern bool opt_debug; @@ -462,7 +462,6 @@ extern bool opt_debug;
extern bool opt_quiet;
extern bool opt_protocol;
extern bool opt_tracegpu;
extern int opt_intensity;
extern int opt_n_threads;
extern int active_gpus;
extern int opt_timeout;
@ -483,7 +482,6 @@ extern int api_thr_id; @@ -483,7 +482,6 @@ extern int api_thr_id;
extern struct work_restart *work_restart;
extern bool opt_trust_pool;
extern uint16_t opt_vote;
extern uint32_t opt_work_size;
extern uint64_t global_hashrate;
extern double global_diff;
@ -492,6 +490,7 @@ extern double global_diff; @@ -492,6 +490,7 @@ extern double global_diff;
extern char* device_name[MAX_GPUS];
extern short device_map[MAX_GPUS];
extern long device_sm[MAX_GPUS];
extern uint32_t gpus_intensity[MAX_GPUS];
#define CL_N "\x1B[0m"
#define CL_RED "\x1B[31m"
@ -535,6 +534,7 @@ extern int timeval_subtract(struct timeval *result, struct timeval *x, @@ -535,6 +534,7 @@ extern int timeval_subtract(struct timeval *result, struct timeval *x,
extern bool fulltest(const uint32_t *hash, const uint32_t *target);
extern void diff_to_target(uint32_t *target, double diff);
extern void get_currentalgo(char* buf, int sz);
extern uint32_t device_intensity(int thr_id, const char *func, uint32_t defcount);
struct stratum_job {
char *job_id;

7
myriadgroestl.cpp
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@ -37,13 +37,8 @@ static bool init[MAX_GPUS] = { 0 }; @@ -37,13 +37,8 @@ static bool init[MAX_GPUS] = { 0 };
extern "C" int scanhash_myriad(int thr_id, uint32_t *pdata, const uint32_t *ptarget,
uint32_t max_nonce, unsigned long *hashes_done)
{
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x000000ff;
uint32_t start_nonce = pdata[19]++;
uint32_t throughput = opt_work_size ? opt_work_size : (1 << 17);
apiReportThroughput(thr_id, throughput);
uint32_t throughput = device_intensity(thr_id, __func__, 1 << 17);
throughput = min(throughput, max_nonce - start_nonce);
uint32_t *outputHash = (uint32_t*)malloc(throughput * 16 * sizeof(uint32_t));

3
pentablake.cu
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@ -370,8 +370,7 @@ extern "C" int scanhash_pentablake(int thr_id, uint32_t *pdata, const uint32_t * @@ -370,8 +370,7 @@ extern "C" int scanhash_pentablake(int thr_id, uint32_t *pdata, const uint32_t *
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int rc = 0;
int throughput = opt_work_size ? opt_work_size : (128 * 2560); // 18.5
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 128U * 2560); // 18.5
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
quark/animecoin.cu
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@ -167,8 +167,7 @@ extern "C" int scanhash_anime(int thr_id, uint32_t *pdata, @@ -167,8 +167,7 @@ extern "C" int scanhash_anime(int thr_id, uint32_t *pdata,
unsigned long *hashes_done)
{
const uint32_t first_nonce = pdata[19];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*2048
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << 19); // 256*256*8
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
quark/quarkcoin.cu
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@ -138,8 +138,7 @@ extern "C" int scanhash_quark(int thr_id, uint32_t *pdata, @@ -138,8 +138,7 @@ extern "C" int scanhash_quark(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int throughput = opt_work_size ? opt_work_size : (1 << 20); // 256*4096
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << 20); // 256*4096
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

5
qubit/deep.cu
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@ -60,9 +60,8 @@ extern "C" int scanhash_deep(int thr_id, uint32_t *pdata, @@ -60,9 +60,8 @@ extern "C" int scanhash_deep(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8
apiReportThroughput(thr_id, (uint32_t) throughput);
throughput = min(throughput, (int)(max_nonce - first_nonce));
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 256*256*8
throughput = min(throughput, (int) (max_nonce - first_nonce));
if (opt_benchmark)
((uint32_t*)ptarget)[7] = 0x0000f;

3
qubit/doom.cu
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@ -40,8 +40,7 @@ extern "C" int scanhash_doom(int thr_id, uint32_t *pdata, @@ -40,8 +40,7 @@ extern "C" int scanhash_doom(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
uint32_t throughput = opt_work_size ? opt_work_size : (1 << 22); // 256*256*8*8
apiReportThroughput(thr_id, (uint32_t) throughput);
uint32_t throughput = device_intensity(thr_id, __func__, 1U << 22); // 256*256*8*8
throughput = min(throughput, (max_nonce - first_nonce));
if (opt_benchmark)

3
qubit/qubit.cu
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@ -80,8 +80,7 @@ extern "C" int scanhash_qubit(int thr_id, uint32_t *pdata, @@ -80,8 +80,7 @@ extern "C" int scanhash_qubit(int thr_id, uint32_t *pdata,
{
uint32_t endiandata[20];
const uint32_t first_nonce = pdata[19];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 256*256*8
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
x11/fresh.cu
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@ -77,8 +77,7 @@ extern "C" int scanhash_fresh(int thr_id, uint32_t *pdata, @@ -77,8 +77,7 @@ extern "C" int scanhash_fresh(int thr_id, uint32_t *pdata,
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << 19);
throughput = min(throughput, (int) (max_nonce - first_nonce));
if (opt_benchmark)

3
x11/s3.cu
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@ -62,8 +62,7 @@ extern "C" int scanhash_s3(int thr_id, uint32_t *pdata, @@ -62,8 +62,7 @@ extern "C" int scanhash_s3(int thr_id, uint32_t *pdata,
// reduce by one the intensity on windows
intensity--;
#endif
int throughput = opt_work_size ? opt_work_size : (1 << intensity);
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << intensity);
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
x11/x11.cu
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@ -133,8 +133,7 @@ extern "C" int scanhash_x11(int thr_id, uint32_t *pdata, @@ -133,8 +133,7 @@ extern "C" int scanhash_x11(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int intensity = (device_sm[device_map[thr_id]] >= 500 && !is_windows()) ? 20 : 19;
int throughput = opt_work_size ? opt_work_size : (1 << intensity); // 20=256*256*16;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << intensity); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
x13/x13.cu
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@ -152,8 +152,7 @@ extern "C" int scanhash_x13(int thr_id, uint32_t *pdata, @@ -152,8 +152,7 @@ extern "C" int scanhash_x13(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
int intensity = 19; // (device_sm[device_map[thr_id]] > 500 && !is_windows()) ? 20 : 19;
int throughput = opt_work_size ? opt_work_size : (1 << intensity); // 19=256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1 << intensity); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
x15/whirlpool.cu
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@ -57,8 +57,7 @@ extern "C" int scanhash_whc(int thr_id, uint32_t *pdata, @@ -57,8 +57,7 @@ extern "C" int scanhash_whc(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

4
x15/x14.cu
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@ -163,8 +163,8 @@ extern "C" int scanhash_x14(int thr_id, uint32_t *pdata, @@ -163,8 +163,8 @@ extern "C" int scanhash_x14(int thr_id, uint32_t *pdata,
{
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

3
x15/x15.cu
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@ -174,8 +174,7 @@ extern "C" int scanhash_x15(int thr_id, uint32_t *pdata, @@ -174,8 +174,7 @@ extern "C" int scanhash_x15(int thr_id, uint32_t *pdata,
const uint32_t first_nonce = pdata[19];
uint32_t endiandata[20];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

4
x17/x17.cu
Unescape View File

@ -191,8 +191,8 @@ extern "C" int scanhash_x17(int thr_id, uint32_t *pdata, @@ -191,8 +191,8 @@ extern "C" int scanhash_x17(int thr_id, uint32_t *pdata,
unsigned long *hashes_done)
{
const uint32_t first_nonce = pdata[19];
int throughput = opt_work_size ? opt_work_size : (1 << 19); // 256*256*8;
apiReportThroughput(thr_id, (uint32_t) throughput);
int throughput = (int) device_intensity(thr_id, __func__, 1U << 19); // 19=256*256*8;
throughput = min(throughput, (int)(max_nonce - first_nonce));
if (opt_benchmark)

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