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gostoclminer
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OpenCL gostcoin miner
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gostoclminer/miner.c

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/*
* Copyright 2010 Jeff Garzik
* 2011 Nils Schneider
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version. See COPYING for more details.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <stdint.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <pthread.h>
#include <getopt.h>
#include <jansson.h>
#include <inttypes.h>
#include "miner.h"
#include "findnonce.h"
#include "ocl.h"
#define VERSION "0.1"
#define PROGRAM_NAME "oclminer"
#define DEF_RPC_URL "http://127.0.0.1:8332/"
#define DEF_RPC_USERPASS "rpcuser:rpcpass"
enum {
STAT_SLEEP_INTERVAL = 100,
STAT_CTR_INTERVAL = 10000000,
FAILURE_INTERVAL = 30,
};
int opt_debug = false;
int opt_protocol = false;
int opt_ndevs = false;
static int opt_retries = 10;
static bool program_running = true;
static const bool opt_time = true;
static int opt_n_threads = 1;
static char *rpc_url = DEF_RPC_URL;
static char *userpass = DEF_RPC_USERPASS;
int block = 0;
_clState *clStates[16];
struct option_help {
const char *name;
const char *helptext;
};
static struct option_help options_help[] = {
{ "help",
"(-h) Display this help text" },
{ "ndevs",
"(-n) Display number of detected GPUs" },
{ "debug",
"(-D) Enable debug output (default: off)" },
{ "protocol-dump",
"(-P) Verbose dump of protocol-level activities (default: off)" },
{ "retries N",
"(-r N) Number of times to retry, if JSON-RPC call fails\n"
"\t(default: 10; use -1 for \"never\")" },
{ "url URL",
"URL for bitcoin JSON-RPC server "
"(default: " DEF_RPC_URL ")" },
{ "userpass USERNAME:PASSWORD",
"Username:Password pair for bitcoin JSON-RPC server "
"(default: " DEF_RPC_USERPASS ")" },
};
static struct option options[] = {
{ "help", 0, NULL, 'h' },
{ "debug", 0, NULL, 'D' },
{ "protocol-dump", 0, NULL, 'P' },
{ "retries", 1, NULL, 'r' },
{ "url", 1, NULL, 1001 },
{ "userpass", 1, NULL, 1002 },
{ "ndevs", 0, NULL, 'n' },
{ }
};
struct work_t {
unsigned char data[128];
unsigned char hash1[64];
unsigned char midstate[32];
unsigned char target[32];
unsigned char hash[32];
uint32_t output[MAXTHREADS];
uint32_t res_nonce;
bool valid;
uint32_t ready;
dev_blk_ctx blk;
};
static bool jobj_binary(const json_t *obj, const char *key,
void *buf, size_t buflen)
{
const char *hexstr;
json_t *tmp;
tmp = json_object_get(obj, key);
if (!tmp) {
fprintf(stderr, "JSON key '%s' not found\n", key);
return false;
}
hexstr = json_string_value(tmp);
if (!hexstr) {
fprintf(stderr, "JSON key '%s' is not a string\n", key);
return false;
}
if (!hex2bin(buf, hexstr, buflen))
return false;
return true;
}
static bool work_decode(const json_t *val, struct work_t *work)
{
if (!jobj_binary(val, "midstate",
work->midstate, sizeof(work->midstate))) {
fprintf(stderr, "JSON inval midstate\n");
goto err_out;
}
if (!jobj_binary(val, "data", work->data, sizeof(work->data))) {
fprintf(stderr, "JSON inval data\n");
goto err_out;
}
if (!jobj_binary(val, "hash1", work->hash1, sizeof(work->hash1))) {
fprintf(stderr, "JSON inval hash1\n");
goto err_out;
}
if (!jobj_binary(val, "target", work->target, sizeof(work->target))) {
fprintf(stderr, "JSON inval target\n");
goto err_out;
}
memset(work->hash, 0, sizeof(work->hash));
return true;
err_out:
return false;
}
static void submit_work(struct work_t *work)
{
char *hexstr = NULL;
json_t *val, *res;
char s[345];
printf("PROOF OF WORK FOUND? submitting...\n");
/* build hex string */
hexstr = bin2hex(work->data, sizeof(work->data));
if (!hexstr)
goto out;
/* build JSON-RPC request */
sprintf(s,
"{\"method\": \"getwork\", \"params\": [ \"%s\" ], \"id\":1}\r\n",
hexstr);
if (opt_debug)
fprintf(stderr, "DBG: sending RPC call:\n%s", s);
/* issue JSON-RPC request */
val = json_rpc_call(rpc_url, userpass, s);
if (!val) {
fprintf(stderr, "submit_work json_rpc_call failed\n");
goto out;
}
res = json_object_get(val, "result");
printf("PROOF OF WORK RESULT: %s\n",
json_is_true(res) ? "true (yay!!!)" : "false (booooo)");
json_decref(val);
out:
free(hexstr);
}
static void hashmeter(int thr_id, struct timeval *tv_start,
unsigned long hashes_done)
{
struct timeval tv_end, diff;
double khashes, secs;
gettimeofday(&tv_end, NULL);
timeval_subtract(&diff, &tv_end, tv_start);
khashes = hashes_done / 1000.0;
secs = (double)diff.tv_sec + ((double)diff.tv_usec / 1000000.0);
printf("HashMeter(%d): %lu hashes, %.2f khash/sec\n",
thr_id, hashes_done,
khashes / secs);
}
static bool getwork(struct work_t *work) {
static const char *rpc_req = "{\"method\": \"getwork\", \"params\": [], \"id\":0}\r\n";
json_t *val;
bool rc;
/* obtain new work from bitcoin */
val = json_rpc_call(rpc_url, userpass, rpc_req);
if (!val) {
fprintf(stderr, "json_rpc_call failed, ");
return false;
}
/* decode result into work state struct */
rc = work_decode(json_object_get(val, "result"), work);
if (!rc) {
fprintf(stderr, "JSON-decode of work failed, ");
return false;
}
json_decref(val);
return true;
}
static void *miner_thread(void *thr_id_int)
{
int thr_id = (unsigned long) thr_id_int;
int failures = 0;
uint32_t res[MAXTHREADS];
size_t globalThreads[1];
size_t localThreads[1];
cl_int status;
_clState *clState = clStates[thr_id];
status = clSetKernelArg(clState->kernel, 0, sizeof(cl_mem), (void *)&clState->inputBuffer);
if(status != CL_SUCCESS) { printf("Error: Setting kernel argument 1.\n"); return false; }
status = clSetKernelArg(clState->kernel, 1, sizeof(cl_mem), (void *)&clState->outputBuffer);
if(status != CL_SUCCESS) { printf("Error: Setting kernel argument 2.\n"); return false; }
struct work_t *work;
work = malloc(sizeof(struct work_t)*2);
work[0].ready = 0;
work[1].ready = 0;
int frame = 0;
int res_frame = 0;
int my_block = block;
bool need_work = true;
while (1) {
unsigned long hashes_done;
struct timeval tv_start;
bool rc;
if (need_work || my_block != block) {
frame++;
frame %= 2;
if (opt_debug)
fprintf(stderr, "getwork\n");
rc = getwork(&work[frame]);
if (!rc) {
fprintf(stderr, "getwork failed, ");
if ((opt_retries >= 0) && (++failures > opt_retries)) {
fprintf(stderr, "terminating thread\n");
return NULL; /* exit thread */
}
/* pause, then restart work loop */
fprintf(stderr, "retry after %d seconds\n", FAILURE_INTERVAL);
sleep(FAILURE_INTERVAL);
continue;
}
precalc_hash(&work[frame].blk, (uint32_t *)(work[frame].midstate), (uint32_t *)(work[frame].data + 64));
work[frame].blk.nonce = 0;
work[frame].valid = true;
work[frame].ready = 0;
my_block = block;
need_work = false;
}
hashes_done = 0;
gettimeofday(&tv_start, NULL);
int threads = 102400 * 4;
globalThreads[0] = threads;
localThreads[0] = 128;
status = clEnqueueWriteBuffer(clState->commandQueue, clState->inputBuffer, CL_TRUE, 0,
sizeof(dev_blk_ctx), (void *)&work[frame].blk, 0, NULL, NULL);
if(status != CL_SUCCESS) { printf("Error: clEnqueueWriteBuffer failed.\n"); return 0; }
status = clEnqueueNDRangeKernel(clState->commandQueue, clState->kernel, 1, NULL,
globalThreads, localThreads, 0, NULL, NULL);
if(status != CL_SUCCESS) { printf("Error: Enqueueing kernel onto command queue. (clEnqueueNDRangeKernel)\n"); return 0; }
clFlush(clState->commandQueue);
hashes_done = 1024 * threads;
if (work[res_frame].ready) {
rc = false;
uint32_t bestG = ~0;
uint32_t nonce;
int j;
for(j = 0; j < work[res_frame].ready; j++) {
if(res[j]) {
uint32_t start = (work[res_frame].res_nonce + j)<<10;
uint32_t my_g, my_nonce;
my_g = postcalc_hash(&work[res_frame].blk, start, start + 1024, &my_nonce);
if (opt_debug)
fprintf(stderr, "DEBUG: H0 within %u .. %u, best G = %08x, nonce = %08x\n", start, start + 1024, my_g, my_nonce);
if(my_g < bestG) {
bestG = my_g;
nonce = my_nonce;
if (opt_debug)
fprintf(stderr, "new best\n");
}
rc = true;
}
}
work[res_frame].ready = false;
uint32_t *target = (uint32_t *)(work[res_frame].target + 24);
if(rc && bestG <= *target) {
printf("Found solution for %08x: %08x %u\n", *target, bestG, nonce);
work[res_frame].data[64+12+0] = (nonce>>0) & 0xff;
work[res_frame].data[64+12+1] = (nonce>>8) & 0xff;
work[res_frame].data[64+12+2] = (nonce>>16) & 0xff;
work[res_frame].data[64+12+3] = (nonce>>24) & 0xff;
submit_work(&work[res_frame]);
block++;
need_work = true;
}
}
clFinish(clState->commandQueue);
status = clEnqueueReadBuffer(clState->commandQueue, clState->outputBuffer, CL_TRUE, 0,
sizeof(uint32_t) * threads, res, 0, NULL, NULL);
if(status != CL_SUCCESS) { printf("Error: clEnqueueReadBuffer failed. (clEnqueueReadBuffer)\n"); return 0; }
clFinish(clState->commandQueue);
res_frame = frame;
work[res_frame].ready = threads;
work[res_frame].res_nonce = work[res_frame].blk.nonce;
work[frame].blk.nonce += threads;
if (work[frame].blk.nonce > 4000000 - threads)
need_work = true;
hashmeter(thr_id, &tv_start, hashes_done);
failures = 0;
}
return NULL;
}
static void show_usage(void)
{
int i;
printf("oclminer version %s\n\n", VERSION);
printf("Usage:\tminerd [options]\n\nSupported options:\n");
for (i = 0; i < ARRAY_SIZE(options_help); i++) {
struct option_help *h;
h = &options_help[i];
printf("--%s\n%s\n\n", h->name, h->helptext);
}
exit(1);
}
static void parse_arg (int key, char *arg)
{
int v, i;
switch(key) {
case 'n':
opt_ndevs = true;
break;
case 'D':
opt_debug = true;
break;
case 'P':
opt_protocol = true;
break;
case 'r':
v = atoi(arg);
if (v < -1 || v > 9999) /* sanity check */
show_usage();
opt_retries = v;
break;
case 1001: /* --url */
if (strncmp(arg, "http://", 7) &&
strncmp(arg, "https://", 8))
show_usage();
rpc_url = arg;
break;
case 1002: /* --userpass */
if (!strchr(arg, ':'))
show_usage();
userpass = arg;
break;
default:
show_usage();
}
}
static void parse_cmdline(int argc, char *argv[])
{
int key;
while (1) {
key = getopt_long(argc, argv, "DPh?n", options, NULL);
if (key < 0)
break;
parse_arg(key, optarg);
}
}
int main (int argc, char *argv[])
{
int i, nDevs;
/* parse command line */
parse_cmdline(argc, argv);
nDevs = clDevicesNum();
if (opt_ndevs) {
printf("%i\n", nDevs);
return nDevs;
}
char name[32];
/* start mining threads */
for (i = 0; i < nDevs; i++) {
pthread_t t;
printf("Init GPU %i\n", i);
clStates[i] = initCl(i, name, sizeof(name));
printf("initCl() finished. Found %s\n", name);
if (pthread_create(&t, NULL, miner_thread,
(void *)(unsigned long) i)) {
fprintf(stderr, "thread %d create failed\n", i);
return 1;
}
sleep(1); /* don't pound RPC server all at once */
}
fprintf(stderr, "%d miner threads started\n", i);
/* main loop */
while (program_running) {
sleep(STAT_SLEEP_INTERVAL);
/* do nothing */
}
return 0;
}