Allow running cgminer in benchmark mode with a work file --benchfile
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diff --git a/README b/README
index d5cc977..d27b770 100644
--- a/README
+++ b/README
@@ -157,6 +157,8 @@ Options for both config file and command line:
--avalon-options <arg> Set avalon options baud:miners:asic:timeout:freq:tech
--avalon-temp <arg> Set avalon target temperature (default: 50)
--balance Change multipool strategy from failover to even share balance
+--benchfile <arg> Run cgminer in benchmark mode using a work file - produces no shares
+--benchfile-display Display each benchfile nonce found
--benchmark Run cgminer in benchmark mode - produces no shares
--bfl-range Use nonce range on bitforce devices if supported
--bflsc-overheat <arg> Set overheat temperature where BFLSC devices throttle, 0 to disable (default: 85)
@@ -631,6 +633,34 @@ For example (this is wrapped, but it's all on one line for real):
---
+BENCHMARK
+
+The --benchmark option hashes a single fixed work item over and over and does
+not submit shares to any pools.
+
+The --benchfile <arg> option hashes the work given in the file <arg> supplied.
+The format of the work file is:
+version,merkleroot,prevhash,diffbits,noncetime
+Any empty line or any line starting with '#' or '/' is ignored.
+When it reaches the end of the file it continues back at the top.
+
+The format of the data items matches the byte ordering and format of the
+the bitcoind getblock RPC output.
+
+An example file containing bitcoin block #1 would be:
+
+# Block 1
+1,0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098,00000000001
+9d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f,1d00ffff,1231469665
+
+However, the work data should be one line without the linebreak in the middle
+
+If you use --benchfile <arg>, then --benchfile-display will output a log line,
+for each nonce found, showing the nonce value in decimal and hex and the work
+used to find it in hex.
+
+---
+
RPC API
For RPC API details see the API-README file
diff --git a/cgminer.c b/cgminer.c
index 11f7e99..b760308 100644
--- a/cgminer.c
+++ b/cgminer.c
@@ -96,6 +96,29 @@ static char packagename[256];
bool opt_work_update;
bool opt_protocol;
+static struct benchfile_layout {
+ int length;
+ char *name;
+} benchfile_data[] = {
+ { 1, "Version" },
+ { 64, "MerkleRoot" },
+ { 64, "PrevHash" },
+ { 8, "DifficultyBits" },
+ { 10, "NonceTime" } // 10 digits
+};
+enum benchwork {
+ BENCHWORK_VERSION = 0,
+ BENCHWORK_MERKLEROOT,
+ BENCHWORK_PREVHASH,
+ BENCHWORK_DIFFBITS,
+ BENCHWORK_NONCETIME,
+ BENCHWORK_COUNT
+};
+static char *opt_benchfile;
+static bool opt_benchfile_display;
+static FILE *benchfile_in;
+static int benchfile_line;
+static int benchfile_work;
static bool opt_benchmark;
bool have_longpoll;
bool want_per_device_stats;
@@ -1177,6 +1200,12 @@ static struct opt_table opt_config_table[] = {
OPT_WITHOUT_ARG("--balance",
set_balance, &pool_strategy,
"Change multipool strategy from failover to even share balance"),
+ OPT_WITH_ARG("--benchfile",
+ opt_set_charp, opt_show_charp, &opt_benchfile,
+ "Run cgminer in benchmark mode using a work file - produces no shares"),
+ OPT_WITHOUT_ARG("--benchfile-display",
+ opt_set_bool, &opt_benchfile_display,
+ "Display each benchfile nonce found"),
OPT_WITHOUT_ARG("--benchmark",
opt_set_bool, &opt_benchmark,
"Run cgminer in benchmark mode - produces no shares"),
@@ -3128,6 +3157,154 @@ static void get_benchmark_work(struct work *work)
calc_diff(work, 0);
}
+static void benchfile_dspwork(struct work *work, uint32_t nonce)
+{
+ char buf[1024];
+ uint32_t dn;
+ int i;
+
+ dn = 0;
+ for (i = 0; i < 4; i++) {
+ dn *= 0x100;
+ dn += nonce & 0xff;
+ nonce /= 0x100;
+ }
+
+ if ((sizeof(work->data) * 2 + 1) > sizeof(buf))
+ quithere(1, "BENCHFILE Invalid buf size");
+
+ __bin2hex(buf, work->data, sizeof(work->data));
+
+ applog(LOG_ERR, "BENCHFILE nonce %u=0x%08x for work=%s",
+ (unsigned int)dn, (unsigned int)dn, buf);
+
+}
+
+static bool benchfile_get_work(struct work *work)
+{
+ char buf[1024];
+ char item[1024];
+ bool got = false;
+
+ if (!benchfile_in) {
+ if (opt_benchfile)
+ benchfile_in = fopen(opt_benchfile, "r");
+ else
+ quit(1, "BENCHFILE Invalid benchfile NULL");
+
+ if (!benchfile_in)
+ quit(1, "BENCHFILE Failed to open benchfile '%s'", opt_benchfile);
+
+ benchfile_line = 0;
+
+ if (!fgets(buf, 1024, benchfile_in))
+ quit(1, "BENCHFILE Failed to read benchfile '%s'", opt_benchfile);
+
+ got = true;
+ benchfile_work = 0;
+ }
+
+ if (!got) {
+ if (!fgets(buf, 1024, benchfile_in)) {
+ if (benchfile_work == 0)
+ quit(1, "BENCHFILE No work in benchfile '%s'", opt_benchfile);
+ fclose(benchfile_in);
+ benchfile_in = NULL;
+ return benchfile_get_work(work);
+ }
+ }
+
+ do
+ {
+ benchfile_line++;
+
+ // Empty lines and lines starting with '#' or '/' are ignored
+ if (*buf != '\0' && *buf != '#' && *buf != '/') {
+ char *commas[BENCHWORK_COUNT];
+ int i, j, len;
+
+ commas[0] = buf;
+ for (i = 1; i < BENCHWORK_COUNT; i++) {
+ commas[i] = strchr(commas[i-1], ',');
+ if (!commas[i]) {
+ quit(1, "BENCHFILE Invalid input file line %d"
+ " - field count is %d but should be %d",
+ benchfile_line, i, BENCHWORK_COUNT);
+ }
+ len = commas[i] - commas[i-1];
+ if (benchfile_data[i-1].length &&
+ (len != benchfile_data[i-1].length)) {
+ quit(1, "BENCHFILE Invalid input file line %d "
+ "field %d (%s) length is %d but should be %d",
+ benchfile_line, i,
+ benchfile_data[i-1].name,
+ len, benchfile_data[i-1].length);
+ }
+
+ *(commas[i]++) = '\0';
+ }
+
+ // NonceTime may have LF's etc
+ len = strlen(commas[BENCHWORK_NONCETIME]);
+ if (len < benchfile_data[BENCHWORK_NONCETIME].length) {
+ quit(1, "BENCHFILE Invalid input file line %d field %d"
+ " (%s) length is %d but should be least %d",
+ benchfile_line, BENCHWORK_NONCETIME+1,
+ benchfile_data[BENCHWORK_NONCETIME].name, len,
+ benchfile_data[BENCHWORK_NONCETIME].length);
+ }
+
+ sprintf(item, "0000000%c", commas[BENCHWORK_VERSION][0]);
+
+ j = strlen(item);
+ for (i = benchfile_data[BENCHWORK_PREVHASH].length-8; i >= 0; i -= 8) {
+ sprintf(&(item[j]), "%.8s", &commas[BENCHWORK_PREVHASH][i]);
+ j += 8;
+ }
+
+ for (i = benchfile_data[BENCHWORK_MERKLEROOT].length-8; i >= 0; i -= 8) {
+ sprintf(&(item[j]), "%.8s", &commas[BENCHWORK_MERKLEROOT][i]);
+ j += 8;
+ }
+
+ long time = atol(commas[BENCHWORK_NONCETIME]);
+
+ sprintf(&(item[j]), "%08lx", time);
+ j += 8;
+
+ strcpy(&(item[j]), commas[BENCHWORK_DIFFBITS]);
+ j += benchfile_data[BENCHWORK_DIFFBITS].length;
+
+ memset(work, 0, sizeof(*work));
+
+ hex2bin(work->data, item, j >> 1);
+
+ calc_midstate(work);
+
+ benchfile_work++;
+
+ return true;
+ }
+ } while (fgets(buf, 1024, benchfile_in));
+
+ if (benchfile_work == 0)
+ quit(1, "BENCHFILE No work in benchfile '%s'", opt_benchfile);
+ fclose(benchfile_in);
+ benchfile_in = NULL;
+ return benchfile_get_work(work);
+}
+
+static void get_benchfile_work(struct work *work)
+{
+ benchfile_get_work(work);
+ work->mandatory = true;
+ work->pool = pools[0];
+ cgtime(&work->tv_getwork);
+ copy_time(&work->tv_getwork_reply, &work->tv_getwork);
+ work->getwork_mode = GETWORK_MODE_BENCHMARK;
+ calc_diff(work, 0);
+}
+
#ifdef HAVE_CURSES
static void disable_curses_windows(void)
{
@@ -3653,7 +3830,7 @@ static bool stale_work(struct work *work, bool share)
struct pool *pool;
int getwork_delay;
- if (opt_benchmark)
+ if (opt_benchmark || opt_benchfile)
return false;
if (work->work_block != work_block) {
@@ -6188,6 +6365,9 @@ bool submit_nonce(struct thr_info *thr, struct work *work, uint32_t nonce)
return false;
}
+ if (opt_benchfile && opt_benchfile_display)
+ benchfile_dspwork(work, nonce);
+
return true;
}
@@ -6208,6 +6388,10 @@ bool submit_noffset_nonce(struct thr_info *thr, struct work *work_in, uint32_t n
}
ret = true;
update_work_stats(thr, work);
+
+ if (opt_benchfile && opt_benchfile_display)
+ benchfile_dspwork(work, nonce);
+
if (!fulltest(work->hash, work->target)) {
applog(LOG_INFO, "%s %d: Share above target", thr->cgpu->drv->name,
thr->cgpu->device_id);
@@ -7016,7 +7200,7 @@ static void *watchpool_thread(void __maybe_unused *userdata)
for (i = 0; i < total_pools; i++) {
struct pool *pool = pools[i];
- if (!opt_benchmark)
+ if (!opt_benchmark && !opt_benchfile)
reap_curl(pool);
/* Get a rolling utility per pool over 10 mins */
@@ -8043,12 +8227,15 @@ int main(int argc, char *argv[])
if (!config_loaded)
load_default_config();
- if (opt_benchmark) {
+ if (opt_benchmark || opt_benchfile) {
struct pool *pool;
pool = add_pool();
pool->rpc_url = malloc(255);
- strcpy(pool->rpc_url, "Benchmark");
+ if (opt_benchfile)
+ strcpy(pool->rpc_url, "Benchfile");
+ else
+ strcpy(pool->rpc_url, "Benchmark");
pool->rpc_user = pool->rpc_url;
pool->rpc_pass = pool->rpc_url;
enable_pool(pool);
@@ -8251,7 +8438,7 @@ int main(int argc, char *argv[])
}
}
- if (opt_benchmark)
+ if (opt_benchmark || opt_benchfile)
goto begin_bench;
for (i = 0; i < total_pools; i++) {
@@ -8418,7 +8605,12 @@ retry:
continue;
}
- if (opt_benchmark) {
+ if (opt_benchfile) {
+ get_benchfile_work(work);
+ applog(LOG_DEBUG, "Generated benchfile work");
+ stage_work(work);
+ continue;
+ } else if (opt_benchmark) {
get_benchmark_work(work);
applog(LOG_DEBUG, "Generated benchmark work");
stage_work(work);