summaryrefslogtreecommitdiff
path: root/src/gpgpu-sim/dram.cc
diff options
context:
space:
mode:
Diffstat (limited to 'src/gpgpu-sim/dram.cc')
-rw-r--r--src/gpgpu-sim/dram.cc630
1 files changed, 317 insertions, 313 deletions
diff --git a/src/gpgpu-sim/dram.cc b/src/gpgpu-sim/dram.cc
index 9f76b96..3182b38 100644
--- a/src/gpgpu-sim/dram.cc
+++ b/src/gpgpu-sim/dram.cc
@@ -68,195 +68,163 @@
#include "gpu-misc.h"
#include "dram.h"
#include "mem_latency_stat.h"
+#include "dram_sched.h"
#ifdef DRAM_VERIFY
int PRINT_CYCLE = 0;
#endif
-dram_t* dram_create( unsigned int id, unsigned int nbk,
- unsigned int tCCD, unsigned int tRRD,
- unsigned int tRCD, unsigned int tRAS,
- unsigned int tRP, unsigned int tRC,
- unsigned int CL, unsigned int WL,
- unsigned int BL, unsigned int tWTR,
- unsigned int busW, unsigned int queue_limit,
- unsigned char scheduler_type )
+template class fifo_pipeline<mem_fetch>;
+template class fifo_pipeline<dram_req_t>;
+
+dram_t::dram_t( unsigned int partition_id, struct memory_config *config )
{
- dram_t *dm;
- unsigned i;
+ id = partition_id;
+ m_stats = NULL;
+ m_config = config;
- dm = (dram_t*)calloc(1,sizeof(dram_t));
- dm = new (dm) dram_t();
+ BL=m_config->gpgpu_dram_burst_length;
+ busW=m_config->gpgpu_dram_buswidth;
- dm->id = id;
+ sscanf(m_config->gpgpu_dram_timing_opt,"%d:%d:%d:%d:%d:%d:%d:%d:%d:%d",&nbk,&tCCD,&tRRD,&tRCD,&tRAS,&tRP,&tRC,&CL,&WL,&tWTR);
+ m_config->gpu_mem_n_bk = nbk;
- dm->nbk = nbk;
- dm->tCCD = tCCD;
- dm->tRRD = tRRD;
- dm->tRCD = tRCD;
- dm->tRCDWR = tRCD - (WL + 1); //formula given in datasheet
- dm->tRAS = tRAS;
- dm->tRP = tRP;
- dm->tRC = tRC;
- dm->CL = CL;
- dm->WL = WL;
- dm->BL = BL;
+ tRCDWR = tRCD - (WL + 1); //formula given in datasheet
+ tRTW = (CL+(BL/2)+2-WL); //read to write time according to datasheet
- dm->tRTW = (CL+(BL/2)+2-WL); //read to write time according to datasheet
- dm->tWTR = tWTR;
+ CCDc = 0;
+ RRDc = 0;
+ RTWc = 0;
+ WTRc = 0;
- dm->busW = busW;
+ rw = READ; //read mode is default
- dm->CCDc = 0;
- dm->RRDc = 0;
- dm->RTWc = 0;
- dm->WTRc = 0;
+ bk = (bank_t**) calloc(sizeof(bank_t*),nbk);
+ bk[0] = (bank_t*) calloc(sizeof(bank_t),nbk);
+ for (unsigned i=1;i<nbk;i++)
+ bk[i] = bk[0] + i;
+ for (unsigned i=0;i<nbk;i++)
+ bk[i]->state = BANK_IDLE;
- dm->rw = READ; //read mode is default
+ prio = 0;
+ rwq = new fifo_pipeline<dram_req_t>("rwq",CL,CL+1,gpu_sim_cycle);
+ mrqq = new fifo_pipeline<dram_req_t>("mrqq",0,0,gpu_sim_cycle);
+ returnq = new fifo_pipeline<mem_fetch>("dramreturnq",0,m_config->gpgpu_dram_sched_queue_size,gpu_sim_cycle);
+ m_fast_ideal_scheduler = NULL;
+ if ( m_config->scheduler_type == DRAM_IDEAL_FAST )
+ m_fast_ideal_scheduler = new ideal_dram_scheduler(this);
+ n_cmd = 0;
+ n_activity = 0;
+ n_nop = 0;
+ n_act = 0;
+ n_pre = 0;
+ n_rd = 0;
+ n_wr = 0;
+ n_req = 0;
+ max_mrqs_temp = 0;
+ bwutil = 0;
+ max_mrqs = 0;
- dm->bk = (bank_t**) calloc(sizeof(bank_t*),dm->nbk);
- dm->bk[0] = (bank_t*) calloc(sizeof(bank_t),dm->nbk);
- for (i=1;i<dm->nbk;i++) {
- dm->bk[i] = dm->bk[0] + i;
+ for (unsigned i=0;i<10;i++) {
+ dram_util_bins[i]=0;
+ dram_eff_bins[i]=0;
}
- for (i=0;i<dm->nbk;i++) {
- dm->bk[i]->state = BANK_IDLE;
- }
- dm->prio = 0;
- dm->rwq = dq_create("rwq",0,dm->CL,dm->CL+1);
- dm->mrqq = dq_create("mrqq",0,0,0);
- dm->queue_limit = queue_limit;
-
- dm->returnq = dq_create("dramreturnq",0,0, queue_limit);
-
- dm->m_fast_ideal_scheduler = NULL;
- if ( scheduler_type == DRAM_IDEAL_FAST )
- dm->m_fast_ideal_scheduler = alloc_fast_ideal_scheduler(dm);
-
-
- dm->n_cmd = 0;
- dm->n_activity = 0;
- dm->n_nop = 0;
- dm->n_act = 0;
- dm->n_pre = 0;
- dm->n_rd = 0;
- dm->n_wr = 0;
- dm->n_req = 0;
- dm->max_mrqs_temp = 0;
+ last_n_cmd = last_n_activity = last_bwutil = 0;
- dm->bwutil = 0;
+ n_cmd_partial = 0;
+ n_activity_partial = 0;
+ n_nop_partial = 0;
+ n_act_partial = 0;
+ n_pre_partial = 0;
+ n_req_partial = 0;
+ ave_mrqs_partial = 0;
+ bwutil_partial = 0;
- dm->max_mrqs = 0;
-
- dm->scheduler_type = scheduler_type;
-
- dm->realistic_scheduler_mode = READ; //realistic scheduler defaults to read
- for (i=0;i<10;i++) {
- dm->dram_util_bins[i]=0;
- dm->dram_eff_bins[i]=0;
- }
- dm->last_n_cmd = dm->last_n_activity = dm->last_bwutil = 0;
-
- dm->n_cmd_partial = 0;
- dm->n_activity_partial = 0;
- dm->n_nop_partial = 0;
- dm->n_act_partial = 0;
- dm->n_pre_partial = 0;
- dm->n_req_partial = 0;
- dm->ave_mrqs_partial = 0;
- dm->bwutil_partial = 0;
- return dm;
+ if ( queue_limit() )
+ mrqq_Dist = StatCreate("mrqq_length",1, queue_limit());
+ else //queue length is unlimited;
+ mrqq_Dist = StatCreate("mrqq_length",1,64); //track up to 64 entries
}
-void dram_free( dram_t *dm )
-{
- dq_free(dm->mrqq);
- dq_free(dm->rwq);
- dq_free( dm->returnq );
-
- free(dm->bk[0]);
- free(dm->bk);
- free(dm);
-}
-
-int dram_full( dram_t *dm )
+int dram_t::full()
{
int full = 0;
- if ( dm->queue_limit == 0 ) return 0;
- if ( dm->scheduler_type == DRAM_IDEAL_FAST ) {
- unsigned nreqs = fast_scheduler_queue_length(dm) + dq_n_element(dm->mrqq);
- full = (nreqs >= dm->queue_limit);
+ if ( m_config->gpgpu_dram_sched_queue_size == 0 ) return 0;
+ if ( m_config->scheduler_type == DRAM_IDEAL_FAST ) {
+ unsigned nreqs = m_fast_ideal_scheduler->num_pending() + mrqq->get_n_element();
+ full = (nreqs >= m_config->gpgpu_dram_sched_queue_size);
} else {
- full = (dm->mrqq->length >= dm->queue_limit);
+ full = (mrqq->get_length() >= m_config->gpgpu_dram_sched_queue_size);
}
return full;
}
-unsigned int dram_que_length( dram_t *dm )
+unsigned int dram_t::que_length() const
{
unsigned nreqs = 0;
- if (dm->scheduler_type == DRAM_IDEAL_FAST ) {
- nreqs = fast_scheduler_queue_length(dm);
+ if (m_config->scheduler_type == DRAM_IDEAL_FAST ) {
+ nreqs = m_fast_ideal_scheduler->num_pending();
} else {
- nreqs = dm->mrqq->length ;
+ nreqs = mrqq->get_length();
}
return nreqs;
}
-void dram_push( dram_t *dm, unsigned int bank,
- unsigned int row, unsigned int col,
- unsigned int nbytes, unsigned int write,
- unsigned int wid,
- unsigned int sid, int cache_hits_waiting, unsigned long long addr,
- void *data )
+bool dram_t::returnq_full() const
{
- dram_req_t *mrq;
-
- if (bank>=dm->nbk) printf("ERROR: no such bank exist in DRAM %d\n", bank);
+ return returnq->full();
+}
- mrq = (dram_req_t *) malloc(sizeof(dram_req_t));
+unsigned int dram_t::queue_limit() const
+{
+ return m_config->gpgpu_dram_sched_queue_size;
+}
- mrq->bk = bank;
- mrq->row = row;
- mrq->col = col;
- mrq->nbytes = nbytes;
- mrq->txbytes = 0;
- mrq->dqbytes = 0;
- mrq->data = data;
- mrq->timestamp = gpu_tot_sim_cycle + gpu_sim_cycle;
- mrq->cache_hits_waiting = cache_hits_waiting;
- mrq->addr = addr;
- mrq->insertion_time = (unsigned) gpu_sim_cycle;
- if (!write) {
- mrq->rw = READ; //request is a read
- } else {
- mrq->rw = WRITE; //request is a write
- }
+dram_req_t::dram_req_t( class mem_fetch *mf )
+{
+ bk = mf->tlx.bk;
+ row = mf->tlx.row;
+ col = mf->tlx.col;
+ nbytes = mf->nbytes_L1;
+ txbytes = 0;
+ dqbytes = 0;
+ data = mf;
+ timestamp = gpu_tot_sim_cycle + gpu_sim_cycle;
+ cache_hits_waiting = mf->cache_hits_waiting;
+ addr = mf->addr;
+ insertion_time = (unsigned) gpu_sim_cycle;
+ rw = data->m_write?WRITE:READ;
+}
- dq_push(dm->mrqq,mrq);
- dm->n_req += 1;
- dm->n_req_partial += 1;
+void dram_t::push( class mem_fetch *data )
+{
+ assert(data->tlx.bk<nbk);
+ dram_req_t *mrq = new dram_req_t(data);
+ mrqq->push(mrq,gpu_sim_cycle);
- if ( dm->scheduler_type == DRAM_IDEAL_FAST ) {
- unsigned nreqs = fast_scheduler_queue_length(dm);
- if ( nreqs > dm->max_mrqs_temp)
- dm->max_mrqs_temp = nreqs;
+ // stats...
+ n_req += 1;
+ n_req_partial += 1;
+ if ( m_config->scheduler_type == DRAM_IDEAL_FAST ) {
+ unsigned nreqs = m_fast_ideal_scheduler->num_pending();
+ if ( nreqs > max_mrqs_temp)
+ max_mrqs_temp = nreqs;
} else {
- dm->max_mrqs_temp = (dm->max_mrqs_temp > dm->mrqq->length)? dm->max_mrqs_temp : dm->mrqq->length;
+ max_mrqs_temp = (max_mrqs_temp > mrqq->get_length())? max_mrqs_temp : mrqq->get_length();
}
+ m_stats->memlatstat_dram_access(data);
}
-void scheduler_fifo(dram_t* dm)
+void dram_t::scheduler_fifo()
{
- if (dm->mrqq->head) {
- dram_req_t *head_mrqq;
+ if (!mrqq->empty()) {
unsigned int bkn;
- head_mrqq = (dram_req_t *)dm->mrqq->head->data;
+ dram_req_t *head_mrqq = mrqq->top();
bkn = head_mrqq->bk;
- if (!dm->bk[bkn]->mrq) {
- dm->bk[bkn]->mrq = (dram_req_t*) dq_pop(dm->mrqq);
+ if (!bk[bkn]->mrq) {
+ bk[bkn]->mrq = mrqq->pop(gpu_sim_cycle);
}
}
}
@@ -265,7 +233,7 @@ void scheduler_fifo(dram_t* dm)
#define DEC2ZERO(x) x = (x)? (x-1) : 0;
#define SWAP(a,b) a ^= b; b ^= a; a ^= b;
-void dram_issueCMD (dram_t* dm)
+void dram_t::issueCMD()
{
unsigned i,j,k;
unsigned char issued;
@@ -274,206 +242,196 @@ void dram_issueCMD (dram_t* dm)
/* check if the upcoming request is on an idle bank */
/* Should we modify this so that multiple requests are checked? */
- switch (dm->scheduler_type) {
- case DRAM_FIFO:
- scheduler_fifo(dm);
- break;
- case DRAM_IDEAL_FAST:
- fast_scheduler_ideal(dm);
- break;
+ switch (m_config->scheduler_type) {
+ case DRAM_FIFO: scheduler_fifo(); break;
+ case DRAM_IDEAL_FAST: fast_scheduler_ideal(); break;
default:
printf("Error: Unknown DRAM scheduler type\n");
assert(0);
}
- if ( dm->scheduler_type == DRAM_IDEAL_FAST ) {
- unsigned nreqs = fast_scheduler_queue_length(dm);
- if ( nreqs > dm->max_mrqs) {
- dm->max_mrqs = nreqs;
+ if ( m_config->scheduler_type == DRAM_IDEAL_FAST ) {
+ unsigned nreqs = m_fast_ideal_scheduler->num_pending();
+ if ( nreqs > max_mrqs) {
+ max_mrqs = nreqs;
}
- dm->ave_mrqs += nreqs;
- dm->ave_mrqs_partial += nreqs;
+ ave_mrqs += nreqs;
+ ave_mrqs_partial += nreqs;
} else {
- if (dm->mrqq->length > dm->max_mrqs) {
- dm->max_mrqs = dm->mrqq->length;
+ if (mrqq->get_length() > max_mrqs) {
+ max_mrqs = mrqq->get_length();
}
- dm->ave_mrqs += dm->mrqq->length;
- dm->ave_mrqs_partial += dm->mrqq->length;
+ ave_mrqs += mrqq->get_length();
+ ave_mrqs_partial += mrqq->get_length();
}
- k=dm->nbk;
+ k=nbk;
// check if any bank is ready to issue a new read
- for (i=0;i<dm->nbk;i++) {
- j = (i + dm->prio) % dm->nbk;
- if (dm->bk[j]->mrq) { //if currently servicing a memory request
+ for (i=0;i<nbk;i++) {
+ j = (i + prio) % nbk;
+ if (bk[j]->mrq) { //if currently servicing a memory request
// correct row activated for a READ
- if ( !issued && !dm->CCDc && !dm->bk[j]->RCDc &&
- (dm->bk[j]->curr_row == dm->bk[j]->mrq->row) &&
- (dm->bk[j]->mrq->rw == READ) && (dm->WTRc == 0 ) &&
- (dm->bk[j]->state == BANK_ACTIVE) &&
- !dq_full(dm->rwq) ) {
- if (dm->rw==WRITE) {
- dm->rw=READ;
- dq_set_min_length(dm->rwq, dm->CL);
+ if ( !issued && !CCDc && !bk[j]->RCDc &&
+ (bk[j]->curr_row == bk[j]->mrq->row) &&
+ (bk[j]->mrq->rw == READ) && (WTRc == 0 ) &&
+ (bk[j]->state == BANK_ACTIVE) &&
+ !rwq->full() ) {
+ if (rw==WRITE) {
+ rw=READ;
+ rwq->set_min_length(CL,gpu_sim_cycle);
}
- dq_push(dm->rwq,(void*)dm->bk[j]->mrq); //only push when rwq empty?
- dm->bk[j]->mrq->txbytes += dm->BL * dm->busW * gpu_n_mem_per_ctrlr; //16 bytes
- dm->CCDc = dm->tCCD;
- dm->RTWc = dm->tRTW;
+ rwq->push(bk[j]->mrq,gpu_sim_cycle);
+ bk[j]->mrq->txbytes += BL * busW * gpu_n_mem_per_ctrlr; //16 bytes
+ CCDc = tCCD;
+ RTWc = tRTW;
issued = 1;
- dm->n_rd++;
- //printf("\tn_rd++ Bank: %d Row: %d Col: %d\n", j, dm->bk[j]->mrq->row, dm->bk[j]->mrq->col);
- dm->bwutil+= dm->BL/2;
- dm->bwutil_partial += dm->BL/2;
- dm->bk[j]->n_access++;
+ n_rd++;
+ bwutil+= BL/2;
+ bwutil_partial += BL/2;
+ bk[j]->n_access++;
#ifdef DRAM_VERIFY
PRINT_CYCLE=1;
printf("\tRD Bk:%d Row:%03x Col:%03x \n",
- j, dm->bk[j]->curr_row,
- dm->bk[j]->mrq->col+dm->bk[j]->mrq->txbytes-dm->BL*dm->busW);
+ j, bk[j]->curr_row,
+ bk[j]->mrq->col+bk[j]->mrq->txbytes-BL*busW);
#endif
// transfer done
- if ( !(dm->bk[j]->mrq->txbytes < dm->bk[j]->mrq->nbytes) ) {
- dm->bk[j]->mrq = NULL;
+ if ( !(bk[j]->mrq->txbytes < bk[j]->mrq->nbytes) ) {
+ bk[j]->mrq = NULL;
}
} else
// correct row activated for a WRITE
- if ( !issued && !dm->CCDc && !dm->bk[j]->RCDWRc &&
- (dm->bk[j]->curr_row == dm->bk[j]->mrq->row) &&
- (dm->bk[j]->mrq->rw == WRITE) && (dm->RTWc == 0 ) &&
- (dm->bk[j]->state == BANK_ACTIVE) &&
- !dq_full(dm->rwq) ) {
- if (dm->rw==READ) {
- dm->rw=WRITE;
- dq_set_min_length(dm->rwq, dm->WL);
+ if ( !issued && !CCDc && !bk[j]->RCDWRc &&
+ (bk[j]->curr_row == bk[j]->mrq->row) &&
+ (bk[j]->mrq->rw == WRITE) && (RTWc == 0 ) &&
+ (bk[j]->state == BANK_ACTIVE) &&
+ !rwq->full() ) {
+ if (rw==READ) {
+ rw=WRITE;
+ rwq->set_min_length(WL,gpu_sim_cycle);
}
- dq_push(dm->rwq,(void*)dm->bk[j]->mrq);
+ rwq->push(bk[j]->mrq,gpu_sim_cycle);
- dm->bk[j]->mrq->txbytes += dm->BL * dm->busW * gpu_n_mem_per_ctrlr; /*16 bytes*/
- dm->CCDc = dm->tCCD;
+ bk[j]->mrq->txbytes += BL * busW * gpu_n_mem_per_ctrlr; /*16 bytes*/
+ CCDc = tCCD;
issued = 1;
- dm->n_wr++;
- dm->bwutil+=2;
- dm->bwutil_partial += dm->BL/2;
+ n_wr++;
+ bwutil+=2;
+ bwutil_partial += BL/2;
#ifdef DRAM_VERIFY
PRINT_CYCLE=1;
printf("\tWR Bk:%d Row:%03x Col:%03x \n",
- j, dm->bk[j]->curr_row,
- dm->bk[j]->mrq->col+dm->bk[j]->mrq->txbytes-dm->BL*dm->busW);
+ j, bk[j]->curr_row,
+ bk[j]->mrq->col+bk[j]->mrq->txbytes-BL*busW);
#endif
// transfer done
- if ( !(dm->bk[j]->mrq->txbytes < dm->bk[j]->mrq->nbytes) ) {
- dm->bk[j]->mrq = NULL;
+ if ( !(bk[j]->mrq->txbytes < bk[j]->mrq->nbytes) ) {
+ bk[j]->mrq = NULL;
}
}
else
// bank is idle
- if ( !issued && !dm->RRDc &&
- (dm->bk[j]->state == BANK_IDLE) &&
- !dm->bk[j]->RPc && !dm->bk[j]->RCc ) {
+ if ( !issued && !RRDc &&
+ (bk[j]->state == BANK_IDLE) &&
+ !bk[j]->RPc && !bk[j]->RCc ) {
#ifdef DRAM_VERIFY
PRINT_CYCLE=1;
printf("\tACT BK:%d NewRow:%03x From:%03x \n",
- j,dm->bk[j]->mrq->row,dm->bk[j]->curr_row);
+ j,bk[j]->mrq->row,bk[j]->curr_row);
#endif
// activate the row with current memory request
- dm->bk[j]->curr_row = dm->bk[j]->mrq->row;
- dm->bk[j]->state = BANK_ACTIVE;
- dm->RRDc = dm->tRRD;
- dm->bk[j]->RCDc = dm->tRCD;
- dm->bk[j]->RCDWRc = dm->tRCDWR;
- dm->bk[j]->RASc = dm->tRAS;
- dm->bk[j]->RCc = dm->tRC;
- dm->prio = (j + 1) % dm->nbk;
+ bk[j]->curr_row = bk[j]->mrq->row;
+ bk[j]->state = BANK_ACTIVE;
+ RRDc = tRRD;
+ bk[j]->RCDc = tRCD;
+ bk[j]->RCDWRc = tRCDWR;
+ bk[j]->RASc = tRAS;
+ bk[j]->RCc = tRC;
+ prio = (j + 1) % nbk;
issued = 1;
- dm->n_act_partial++;
- dm->n_act++;
+ n_act_partial++;
+ n_act++;
}
else
// different row activated
if ( (!issued) &&
- (dm->bk[j]->curr_row != dm->bk[j]->mrq->row) &&
- (dm->bk[j]->state == BANK_ACTIVE) &&
- (!dm->bk[j]->RASc) ) {
- //printf("\tRASc: %d \n", dm->bk[j]->RASc);
+ (bk[j]->curr_row != bk[j]->mrq->row) &&
+ (bk[j]->state == BANK_ACTIVE) &&
+ (!bk[j]->RASc) ) {
// make the bank idle again
- dm->bk[j]->state = BANK_IDLE;
- dm->bk[j]->RPc = dm->tRP;
- dm->prio = (j + 1) % dm->nbk;
+ bk[j]->state = BANK_IDLE;
+ bk[j]->RPc = tRP;
+ prio = (j + 1) % nbk;
issued = 1;
- dm->n_pre++;
- dm->n_pre_partial++;
+ n_pre++;
+ n_pre_partial++;
#ifdef DRAM_VERIFY
PRINT_CYCLE=1;
- printf("\tPRE BK:%d Row:%03x \n", j,dm->bk[j]->curr_row);
- //printf("\tRASc: %d \n", dm->bk[j]->RASc);
+ printf("\tPRE BK:%d Row:%03x \n", j,bk[j]->curr_row);
#endif
}
} else {
- if (!dm->CCDc && !dm->RRDc && !dm->RTWc && !dm->WTRc && !dm->bk[j]->RCDc && !dm->bk[j]->RASc
- && !dm->bk[j]->RCc && !dm->bk[j]->RPc && !dm->bk[j]->RCDWRc) k--;
- dm->bk[i]->n_idle++;
+ if (!CCDc && !RRDc && !RTWc && !WTRc && !bk[j]->RCDc && !bk[j]->RASc
+ && !bk[j]->RCc && !bk[j]->RPc && !bk[j]->RCDWRc) k--;
+ bk[i]->n_idle++;
}
}
if (!issued) {
- dm->n_nop++;
- dm->n_nop_partial++;
+ n_nop++;
+ n_nop_partial++;
#ifdef DRAM_VIEWCMD
printf("\tNOP ");
#endif
}
if (k) {
- dm->n_activity++;
- dm->n_activity_partial++;
+ n_activity++;
+ n_activity_partial++;
}
- dm->n_cmd++;
- dm->n_cmd_partial++;
+ n_cmd++;
+ n_cmd_partial++;
// decrements counters once for each time dram_issueCMD is called
- DEC2ZERO(dm->RRDc);
- DEC2ZERO(dm->CCDc);
- DEC2ZERO(dm->RTWc);
- DEC2ZERO(dm->WTRc);
- for (j=0;j<dm->nbk;j++) {
- DEC2ZERO(dm->bk[j]->RCDc);
- DEC2ZERO(dm->bk[j]->RASc);
- DEC2ZERO(dm->bk[j]->RCc);
- DEC2ZERO(dm->bk[j]->RPc);
- DEC2ZERO(dm->bk[j]->RCDWRc);
+ DEC2ZERO(RRDc);
+ DEC2ZERO(CCDc);
+ DEC2ZERO(RTWc);
+ DEC2ZERO(WTRc);
+ for (j=0;j<nbk;j++) {
+ DEC2ZERO(bk[j]->RCDc);
+ DEC2ZERO(bk[j]->RASc);
+ DEC2ZERO(bk[j]->RCc);
+ DEC2ZERO(bk[j]->RPc);
+ DEC2ZERO(bk[j]->RCDWRc);
}
#ifdef DRAM_VISUALIZE
- dram_visualize(dm);
+ visualize();
#endif
}
//if mrq is being serviced by dram, gets popped after CL latency fulfilled
-void* dram_pop( dram_t *dm )
-{
+class mem_fetch* dram_t::pop()
+{
dram_req_t *mrq;
- void *data;
+ class mem_fetch *data;
unsigned dq_latency;
data = NULL;
- mrq = (dram_req_t*)dq_pop(dm->rwq);
+ mrq = rwq->pop(gpu_sim_cycle);
if (mrq) {
- // data = mrq->data;
#ifdef DRAM_VIEWCMD
printf("\tDQ: BK%d Row:%03x Col:%03x",
mrq->bk, mrq->row, mrq->col + mrq->dqbytes);
#endif
- mrq->dqbytes += dm->BL * dm->busW * gpu_n_mem_per_ctrlr; /*16 bytes*/
+ mrq->dqbytes += BL * busW * gpu_n_mem_per_ctrlr; /*16 bytes*/
if (mrq->dqbytes >= mrq->nbytes) {
-
- if (gpgpu_memlatency_stat) {
+ if (m_config->gpgpu_memlatency_stat) {
dq_latency = gpu_sim_cycle + gpu_tot_sim_cycle - mrq->timestamp;
- dq_lat_table[LOGB2(dq_latency)]++;
- if (dq_latency > max_dq_latency)
- max_dq_latency = dq_latency;
+ m_stats->dq_lat_table[LOGB2(dq_latency)]++;
+ if (dq_latency > m_stats->max_dq_latency)
+ m_stats->max_dq_latency = dq_latency;
}
data = mrq->data;
-
- free(mrq);
+ delete mrq;
}
}
#ifdef DRAM_VIEWCMD
@@ -483,17 +441,33 @@ void* dram_pop( dram_t *dm )
return data;
}
+void dram_t::returnq_push( class mem_fetch *mf, unsigned long long gpu_sim_cycle)
+{
+ returnq->push(mf,gpu_sim_cycle);
+}
+
+class mem_fetch* dram_t::returnq_pop( unsigned long long gpu_sim_cycle)
+{
+ return returnq->pop(gpu_sim_cycle);
+}
+
+class mem_fetch* dram_t::returnq_top()
+{
+ return returnq->top();
+}
+
+
// a hack to allow peeking into what memory request will be serviced.
-void* dram_top( dram_t *dm )
+class mem_fetch* dram_t::top()
{
dram_req_t *mrq;
- void *data;
+ class mem_fetch *data;
data = NULL;
- mrq = (dram_req_t*)dq_top(dm->rwq);
+ mrq = rwq->top();
if (mrq) {
// number of bytes returned from dram if this is ever popped
- unsigned tobe_dqbytes = mrq->dqbytes + dm->BL * dm->busW * gpu_n_mem_per_ctrlr;
+ unsigned tobe_dqbytes = mrq->dqbytes + BL * busW * gpu_n_mem_per_ctrlr;
if (tobe_dqbytes >= mrq->nbytes) {
data = mrq->data;
}
@@ -502,82 +476,112 @@ void* dram_top( dram_t *dm )
return data;
}
-void dram_print( dram_t* dm, FILE* simFile)
+void dram_t::print( FILE* simFile) const
{
unsigned i;
fprintf(simFile,"DRAM[%d]: %d bks, busW=%d BL=%d CL=%d, ",
- dm->id, dm->nbk, dm->busW, dm->BL, dm->CL );
+ id, nbk, busW, BL, CL );
fprintf(simFile,"tRRD=%d tCCD=%d, tRCD=%d tRAS=%d tRP=%d tRC=%d\n",
- dm->tCCD, dm->tRRD, dm->tRCD, dm->tRAS, dm->tRP, dm->tRC );
+ tCCD, tRRD, tRCD, tRAS, tRP, tRC );
fprintf(simFile,"n_cmd=%d n_nop=%d n_act=%d n_pre=%d n_req=%d n_rd=%d n_write=%d bw_util=%.4g\n",
- dm->n_cmd, dm->n_nop, dm->n_act, dm->n_pre, dm->n_req, dm->n_rd, dm->n_wr,
- (float)dm->bwutil/dm->n_cmd);
+ n_cmd, n_nop, n_act, n_pre, n_req, n_rd, n_wr,
+ (float)bwutil/n_cmd);
fprintf(simFile,"n_activity=%d dram_eff=%.4g\n",
- dm->n_activity, (float)dm->bwutil/dm->n_activity);
- for (i=0;i<dm->nbk;i++) {
- fprintf(simFile, "bk%d: %da %di ",i,dm->bk[i]->n_access,dm->bk[i]->n_idle);
+ n_activity, (float)bwutil/n_activity);
+ for (i=0;i<nbk;i++) {
+ fprintf(simFile, "bk%d: %da %di ",i,bk[i]->n_access,bk[i]->n_idle);
}
fprintf(simFile, "\n");
fprintf(simFile, "dram_util_bins:");
- for (i=0;i<10;i++) fprintf(simFile, " %d", dm->dram_util_bins[i]);
+ for (i=0;i<10;i++) fprintf(simFile, " %d", dram_util_bins[i]);
fprintf(simFile, "\ndram_eff_bins:");
- for (i=0;i<10;i++) fprintf(simFile, " %d", dm->dram_eff_bins[i]);
+ for (i=0;i<10;i++) fprintf(simFile, " %d", dram_eff_bins[i]);
fprintf(simFile, "\n");
- /*
- {
- delay_data* mrq;
- mrq = dm->mrqq->head;
- while (mrq) {
- printf("%d",((dram_req_t*)mrq->data)->bk);
- mrq = mrq->next;
- }
- printf("\n");
- }
- */
- fprintf(simFile, "mrqq: max=%d avg=%g\n", dm->max_mrqs, (float)dm->ave_mrqs/dm->n_cmd);
+ fprintf(simFile, "mrqq: max=%d avg=%g\n", max_mrqs, (float)ave_mrqs/n_cmd);
}
-void dram_visualize( dram_t* dm )
+void dram_t::visualize() const
{
- unsigned i;
-
printf("RRDc=%d CCDc=%d mrqq.Length=%d rwq.Length=%d\n",
- dm->RRDc, dm->CCDc, dm->mrqq->length,dm->rwq->length);
- for (i=0;i<dm->nbk;i++) {
+ RRDc, CCDc, mrqq->get_length(),rwq->get_length());
+ for (unsigned i=0;i<nbk;i++) {
printf("BK%d: state=%c curr_row=%03x, %2d %2d %2d %2d %p ",
- i, dm->bk[i]->state, dm->bk[i]->curr_row,
- dm->bk[i]->RCDc, dm->bk[i]->RASc,
- dm->bk[i]->RPc, dm->bk[i]->RCc,
- dm->bk[i]->mrq );
- if (dm->bk[i]->mrq)
- printf("txf: %d %d", dm->bk[i]->mrq->nbytes, dm->bk[i]->mrq->txbytes);
+ i, bk[i]->state, bk[i]->curr_row,
+ bk[i]->RCDc, bk[i]->RASc,
+ bk[i]->RPc, bk[i]->RCc,
+ bk[i]->mrq );
+ if (bk[i]->mrq)
+ printf("txf: %d %d", bk[i]->mrq->nbytes, bk[i]->mrq->txbytes);
printf("\n");
}
- if ( dm->m_fast_ideal_scheduler ) {
- dump_fast_ideal_scheduler( dm );
- }
-
+ if ( m_fast_ideal_scheduler )
+ m_fast_ideal_scheduler->print(stdout);
}
-void dram_print_stat( dram_t* dm, FILE* simFile )
+void dram_t::print_stat( FILE* simFile )
{
- int i;
fprintf(simFile,"DRAM (%d): n_cmd=%d n_nop=%d n_act=%d n_pre=%d n_req=%d n_rd=%d n_write=%d bw_util=%.4g ",
- dm->id, dm->n_cmd, dm->n_nop, dm->n_act, dm->n_pre, dm->n_req, dm->n_rd, dm->n_wr,
- (float)dm->bwutil/dm->n_cmd);
- fprintf(simFile, "mrqq: %d %.4g mrqsmax=%d ", dm->max_mrqs, (float)dm->ave_mrqs/dm->n_cmd, dm->max_mrqs_temp);
+ id, n_cmd, n_nop, n_act, n_pre, n_req, n_rd, n_wr,
+ (float)bwutil/n_cmd);
+ fprintf(simFile, "mrqq: %d %.4g mrqsmax=%d ", max_mrqs, (float)ave_mrqs/n_cmd, max_mrqs_temp);
fprintf(simFile, "\n");
fprintf(simFile, "dram_util_bins:");
- for (i=0;i<10;i++) fprintf(simFile, " %d", dm->dram_util_bins[i]);
+ for (unsigned i=0;i<10;i++) fprintf(simFile, " %d", dram_util_bins[i]);
fprintf(simFile, "\ndram_eff_bins:");
- for (i=0;i<10;i++) fprintf(simFile, " %d", dm->dram_eff_bins[i]);
+ for (unsigned i=0;i<10;i++) fprintf(simFile, " %d", dram_eff_bins[i]);
fprintf(simFile, "\n");
- dm->max_mrqs_temp = 0;
+ max_mrqs_temp = 0;
}
-
-unsigned dram_busy( dram_t* dm)
+void dram_t::queue_latency_log_dump( FILE *fp )
{
- return !dm->m_request_tracker.empty();
+ fprintf(fp,"(LOGB2)Latency DRAM[%d] ",id);
+ StatDisp(mrqq->get_lat_stat());
+ fprintf(fp,"(LOGB2)Latency DRAM[%d] ",id);
+ StatDisp(rwq->get_lat_stat());
+ dram_log(DUMPLOG);
}
+void dram_t::visualizer_print( gzFile visualizer_file )
+{
+ // dram specific statistics
+ gzprintf(visualizer_file,"dramncmd: %u %u\n",id, n_cmd_partial);
+ gzprintf(visualizer_file,"dramnop: %u %u\n",id,n_nop_partial);
+ gzprintf(visualizer_file,"dramnact: %u %u\n",id,n_act_partial);
+ gzprintf(visualizer_file,"dramnpre: %u %u\n",id,n_pre_partial);
+ gzprintf(visualizer_file,"dramnreq: %u %u\n",id,n_req_partial);
+ gzprintf(visualizer_file,"dramavemrqs: %u %u\n",id,
+ n_cmd_partial?(ave_mrqs_partial/n_cmd_partial ):0);
+
+ // utilization and efficiency
+ gzprintf(visualizer_file,"dramutil: %u %u\n",
+ id,n_cmd_partial?100*bwutil_partial/n_cmd_partial:0);
+ gzprintf(visualizer_file,"drameff: %u %u\n",
+ id,n_activity_partial?100*bwutil_partial/n_activity_partial:0);
+
+ // reset for next interval
+ bwutil_partial = 0;
+ n_activity_partial = 0;
+ ave_mrqs_partial = 0;
+ n_cmd_partial = 0;
+ n_nop_partial = 0;
+ n_act_partial = 0;
+ n_pre_partial = 0;
+ n_req_partial = 0;
+
+ // dram access type classification
+ for (unsigned j = 0; j < m_config->gpu_mem_n_bk; j++) {
+ gzprintf(visualizer_file,"dramglobal_acc_r: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[GLOBAL_ACC_R][id][j]);
+ gzprintf(visualizer_file,"dramglobal_acc_w: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[GLOBAL_ACC_W][id][j]);
+ gzprintf(visualizer_file,"dramlocal_acc_r: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[LOCAL_ACC_R][id][j]);
+ gzprintf(visualizer_file,"dramlocal_acc_w: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[LOCAL_ACC_W][id][j]);
+ gzprintf(visualizer_file,"dramconst_acc_r: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[CONST_ACC_R][id][j]);
+ gzprintf(visualizer_file,"dramtexture_acc_r: %u %u %u\n", id, j,
+ m_stats->mem_access_type_stats[TEXTURE_ACC_R][id][j]);
+ }
+}
generated by cgit v1.3 (git 2.53.0) at 2026-07-10 22:28:01 +0000