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Code Issues Releases Wiki Activity

Make the worksize and vector width configurable.

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This commit is contained in:
Con Kolivas 2011-06-25 18:58:59 +10:00
parent ead1281b57
commit 656b485d80
3 changed files with 37 additions and 2 deletions
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26
cpu-miner.c
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@ -120,6 +120,8 @@ static bool opt_quiet = false;
static int opt_retries = 10;
static int opt_fail_pause = 30;
static int opt_log_interval = 5;
int opt_vectors;
int opt_worksize;
int opt_scantime = 60;
static json_t *opt_config;
static const bool opt_time = true;
@ -231,6 +233,12 @@ static struct option_help options_help[] = {
"(-u USERNAME) Username for bitcoin JSON-RPC server "
"(default: " DEF_RPC_USERNAME ")" },
{ "vectors N",
"(-v N) Override detected optimal vector width (default: detected, 1,2 or 4)" },
{ "worksize N",
"(-w N) Override detected optimal worksize (default: detected)" },
{ "pass PASSWORD",
"(-p PASSWORD) Password for bitcoin JSON-RPC server "
"(default: " DEF_RPC_PASSWORD ")" },
@ -257,6 +265,8 @@ static struct option options[] = {
#endif
{ "url", 1, NULL, 1001 },
{ "user", 1, NULL, 'u' },
{ "vectors", 1, NULL, 'v' },
{ "worksize", 1, NULL, 'w' },
{ "userpass", 1, NULL, 1002 },
};
@ -902,7 +912,7 @@ static void *gpuminer_thread(void *userdata)
gettimeofday(&tv_start, NULL);
globalThreads[0] = threads;
localThreads[0] = clState->max_work_size / vectors;
localThreads[0] = clState->work_size;
while (1) {
struct timeval tv_end, diff, tv_workstart;
@ -1164,6 +1174,20 @@ static void parse_arg (int key, char *arg)
free(rpc_user);
rpc_user = strdup(arg);
break;
case 'v':
v = atoi(arg);
if (v != 1 && v != 2 && v != 4)
show_usage();
opt_vectors = v;
break;
case 'w':
v = atoi(arg);
if (v < 1 || v > 9999) /* sanity check */
show_usage();
opt_worksize = v;
break;
case 1001: /* --url */
if (strncmp(arg, "http://", 7) &&
strncmp(arg, "https://", 8))

12
ocl.c
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@ -14,6 +14,9 @@
#include "findnonce.h"
#include "ocl.h"
extern int opt_vectors;
extern int opt_worksize;
char *file_contents(const char *filename, int *length)
{
FILE *f = fopen(filename, "r");
@ -309,6 +312,13 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
char *source = file_contents(filename, &pl);
size_t sourceSize[] = {(size_t)pl};
if (opt_vectors)
clState->preferred_vwidth = opt_vectors;
if (opt_worksize && opt_worksize <= clState->max_work_size)
clState->work_size = opt_worksize;
else
clState->work_size = clState->max_work_size / clState->preferred_vwidth;
/* Patch the source file with the preferred_vwidth */
if (clState->preferred_vwidth > 1) {
char *find = strstr(source, "VECTORSX");
@ -342,7 +352,7 @@ _clState *initCl(unsigned int gpu, char *name, size_t nameSize)
applog(LOG_DEBUG, "cl_amd_media_ops not found, will not BFI_INT patch");
applog(LOG_INFO, "Initialising kernel with%s BFI_INT patching, %d vectors and worksize %d",
hasBitAlign ? "" : "out", clState->preferred_vwidth, clState->max_work_size / clState->preferred_vwidth);
hasBitAlign ? "" : "out", clState->preferred_vwidth, clState->work_size);
clState->program = clCreateProgramWithSource(clState->context, 1, (const char **)&source, sourceSize, &status);
if(status != CL_SUCCESS)

1
ocl.h
View File

@ -14,6 +14,7 @@ typedef struct {
cl_mem outputBuffer;
cl_uint preferred_vwidth;
size_t max_work_size;
size_t work_size;
} _clState;
extern char *file_contents(const char *filename, int *length);