/* The main CPU accumulator thread */
void guppi_accum_thread(void *_args) {
float **accumulator; //indexed accumulator[accum_id][chan][subband][stokes]
char accum_dirty[NUM_SW_STATES];
struct sdfits_data_columns data_cols[NUM_SW_STATES];
int payload_type;
int i, j, k, rv;
/* Get arguments */
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
/* Set cpu affinity */
cpu_set_t cpuset, cpuset_orig;
sched_getaffinity(0, sizeof(cpu_set_t), &cpuset_orig);
//CPU_ZERO(&cpuset);
CPU_CLR(13, &cpuset);
CPU_SET(9, &cpuset);
rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("guppi_accum_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, args->priority);
if (rv<0) {
guppi_error("guppi_accum_thread", "Error setting priority level.");
perror("set_priority");
}
/* Attach to status shared mem area */
struct guppi_status st;
rv = guppi_status_attach(&st);
if (rv!=GUPPI_OK) {
guppi_error("guppi_accum_thread",
"Error attaching to status shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_status_detach, &st);
pthread_cleanup_push((void *)set_exit_status, &st);
pthread_cleanup_push((void *)guppi_thread_set_finished, args);
/* Init status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "init");
guppi_status_unlock_safe(&st);
/* Read in general parameters */
struct guppi_params gp;
struct sdfits sf;
pthread_cleanup_push((void *)guppi_free_sdfits, &sf);
/* Attach to databuf shared mem */
struct guppi_databuf *db_in, *db_out;
db_in = guppi_databuf_attach(args->input_buffer);
char errmsg[256];
if (db_in==NULL) {
sprintf(errmsg,
"Error attaching to input databuf(%d) shared memory.",
args->input_buffer);
guppi_error("guppi_accum_thread", errmsg);
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db_in);
db_out = guppi_databuf_attach(args->output_buffer);
if (db_out==NULL) {
sprintf(errmsg,
"Error attaching to output databuf(%d) shared memory.",
args->output_buffer);
guppi_error("guppi_accum_thread", errmsg);
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db_out);
/* Determine high/low bandwidth mode */
char bw_mode[16];
if (hgets(st.buf, "BW_MODE", 16, bw_mode))
{
if(strncmp(bw_mode, "high", 4) == 0)
payload_type = INT_PAYLOAD;
else if(strncmp(bw_mode, "low", 3) == 0)
payload_type = FLOAT_PAYLOAD;
else
guppi_error("guppi_net_thread", "Unsupported bandwidth mode");
}
else
guppi_error("guppi_net_thread", "BW_MODE not set");
/* Read nchan and nsubband from status shared memory */
guppi_read_obs_params(st.buf, &gp, &sf);
/* Allocate memory for vector accumulators */
create_accumulators(&accumulator, sf.hdr.nchan, sf.hdr.nsubband);
pthread_cleanup_push((void *)destroy_accumulators, accumulator);
/* Clear the vector accumulators */
for(i = 0; i < NUM_SW_STATES; i++) accum_dirty[i] = 1;
reset_accumulators(accumulator, data_cols, accum_dirty, sf.hdr.nsubband, sf.hdr.nchan);
/* Loop */
int curblock_in=0, curblock_out=0;
int first=1;
float reqd_exposure=0;
double accum_time=0;
int integ_num;
float pfb_rate;
int heap, accumid, struct_offset, array_offset;
char *hdr_in=NULL, *hdr_out=NULL;
struct databuf_index *index_in, *index_out;
int nblock_int=0, npacket=0, n_pkt_drop=0, n_heap_drop=0;
signal(SIGINT,cc);
while (run) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "waiting");
guppi_status_unlock_safe(&st);
/* Wait for buf to have data */
rv = guppi_databuf_wait_filled(db_in, curblock_in);
if (rv!=0) continue;
/* Note waiting status and current block*/
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "accumulating");
hputi4(st.buf, "ACCBLKIN", curblock_in);
guppi_status_unlock_safe(&st);
/* Read param struct for this block */
hdr_in = guppi_databuf_header(db_in, curblock_in);
if (first)
guppi_read_obs_params(hdr_in, &gp, &sf);
else
guppi_read_subint_params(hdr_in, &gp, &sf);
/* Do any first time stuff: first time code runs, not first time process this block */
if (first) {
/* Set up first output header. This header is copied from block to block
each time a new block is created */
hdr_out = guppi_databuf_header(db_out, curblock_out);
memcpy(hdr_out, guppi_databuf_header(db_in, curblock_in),
GUPPI_STATUS_SIZE);
/* Read required exposure and PFB rate from status shared memory */
reqd_exposure = sf.data_columns.exposure;
pfb_rate = sf.hdr.efsampfr / (2 * sf.hdr.nchan);
/* Initialise the index in the output block */
index_out = (struct databuf_index*)guppi_databuf_index(db_out, curblock_out);
index_out->num_datasets = 0;
index_out->array_size = sf.hdr.nsubband * sf.hdr.nchan * NUM_STOKES * 4;
first=0;
}
/* Loop through each spectrum (heap) in input buffer */
index_in = (struct databuf_index*)guppi_databuf_index(db_in, curblock_in);
for(heap = 0; heap < index_in->num_heaps; heap++)
{
/* If invalid, record it and move to next heap */
if(!index_in->cpu_gpu_buf[heap].heap_valid)
{
n_heap_drop++;
continue;
}
/* Read in heap from buffer */
char* heap_addr = (char*)(guppi_databuf_data(db_in, curblock_in) +
sizeof(struct freq_spead_heap) * heap);
struct freq_spead_heap* freq_heap = (struct freq_spead_heap*)(heap_addr);
char* payload_addr = (char*)(guppi_databuf_data(db_in, curblock_in) +
sizeof(struct freq_spead_heap) * MAX_HEAPS_PER_BLK +
(index_in->heap_size - sizeof(struct freq_spead_heap)) * heap );
int *i_payload = (int*)(payload_addr);
float *f_payload = (float*)(payload_addr);
accumid = freq_heap->status_bits & 0x7;
/*Debug: print heap */
/* printf("%d, %d, %d, %d, %d, %d\n", freq_heap->time_cntr, freq_heap->spectrum_cntr,
freq_heap->integ_size, freq_heap->mode, freq_heap->status_bits,
freq_heap->payload_data_off);
*/
/* If we have accumulated for long enough, write vectors to output block */
if(accum_time >= reqd_exposure)
{
for(i = 0; i < NUM_SW_STATES; i++)
{
/*If a particular accumulator is dirty, write it to output buffer */
if(accum_dirty[i])
{
/*If insufficient space, first mark block as filled and request new block*/
index_out = (struct databuf_index*)(guppi_databuf_index(db_out, curblock_out));
if( (index_out->num_datasets+1) *
(index_out->array_size + sizeof(struct sdfits_data_columns)) >
db_out->block_size)
{
printf("Accumulator finished with output block %d\n", curblock_out);
/* Write block number to status buffer */
guppi_status_lock_safe(&st);
hputi4(st.buf, "ACCBLKOU", curblock_out);
guppi_status_unlock_safe(&st);
/* Update packet count and loss fields in output header */
hputi4(hdr_out, "NBLOCK", nblock_int);
hputi4(hdr_out, "NPKT", npacket);
hputi4(hdr_out, "NPKTDROP", n_pkt_drop);
hputi4(hdr_out, "NHPDROP", n_heap_drop);
/* Close out current integration */
guppi_databuf_set_filled(db_out, curblock_out);
/* Wait for next output buf */
curblock_out = (curblock_out + 1) % db_out->n_block;
guppi_databuf_wait_free(db_out, curblock_out);
while ((rv=guppi_databuf_wait_free(db_out, curblock_out)) != GUPPI_OK)
{
if (rv==GUPPI_TIMEOUT) {
guppi_warn("guppi_accum_thread", "timeout while waiting for output block");
continue;
} else {
guppi_error("guppi_accum_thread", "error waiting for free databuf");
run=0;
pthread_exit(NULL);
break;
}
}
hdr_out = guppi_databuf_header(db_out, curblock_out);
memcpy(hdr_out, guppi_databuf_header(db_in, curblock_in),
GUPPI_STATUS_SIZE);
/* Initialise the index in new output block */
index_out = (struct databuf_index*)guppi_databuf_index(db_out, curblock_out);
index_out->num_datasets = 0;
index_out->array_size = sf.hdr.nsubband * sf.hdr.nchan * NUM_STOKES * 4;
nblock_int=0;
npacket=0;
n_pkt_drop=0;
n_heap_drop=0;
}
/*Update index for output buffer*/
index_out = (struct databuf_index*)(guppi_databuf_index(db_out, curblock_out));
if(index_out->num_datasets == 0)
struct_offset = 0;
else
struct_offset = index_out->disk_buf[index_out->num_datasets-1].array_offset +
index_out->array_size;
array_offset = struct_offset + sizeof(struct sdfits_data_columns);
index_out->disk_buf[index_out->num_datasets].struct_offset = struct_offset;
index_out->disk_buf[index_out->num_datasets].array_offset = array_offset;
/*Copy sdfits_data_columns struct to disk buffer */
memcpy(guppi_databuf_data(db_out, curblock_out) + struct_offset,
&data_cols[i], sizeof(struct sdfits_data_columns));
/*Copy data array to disk buffer */
memcpy(guppi_databuf_data(db_out, curblock_out) + array_offset,
accumulator[i], index_out->array_size);
/*Update SDFITS data_columns pointer to data array */
((struct sdfits_data_columns*)
(guppi_databuf_data(db_out, curblock_out) + struct_offset))->data =
(unsigned char*)(guppi_databuf_data(db_out, curblock_out) + array_offset);
index_out->num_datasets = index_out->num_datasets + 1;
}
}
accum_time = 0;
integ_num += 1;
reset_accumulators(accumulator, data_cols, accum_dirty,
sf.hdr.nsubband, sf.hdr.nchan);
}
/* Only add spectrum to accumulator if blanking bit is low */
if((freq_heap->status_bits & 0x08) == 0)
{
/* Fill in data columns header fields */
if(!accum_dirty[accumid])
{
/*Record SPEAD header fields*/
data_cols[accumid].time = index_in->cpu_gpu_buf[heap].heap_rcvd_mjd;
data_cols[accumid].time_counter = freq_heap->time_cntr;
data_cols[accumid].integ_num = integ_num;
data_cols[accumid].sttspec = freq_heap->spectrum_cntr;
data_cols[accumid].accumid = accumid;
/* Fill in rest of fields from status buffer */
strcpy(data_cols[accumid].object, sf.data_columns.object);
data_cols[accumid].azimuth = sf.data_columns.azimuth;
data_cols[accumid].elevation = sf.data_columns.elevation;
data_cols[accumid].bmaj = sf.data_columns.bmaj;
data_cols[accumid].bmin = sf.data_columns.bmin;
data_cols[accumid].bpa = sf.data_columns.bpa;
data_cols[accumid].centre_freq_idx = sf.data_columns.centre_freq_idx;
data_cols[accumid].ra = sf.data_columns.ra;
data_cols[accumid].dec = sf.data_columns.dec;
data_cols[accumid].exposure = 0.0;
for(i = 0; i < NUM_SW_STATES; i++)
data_cols[accumid].centre_freq[i] = sf.data_columns.centre_freq[i];
accum_dirty[accumid] = 1;
}
data_cols[accumid].exposure += (float)(freq_heap->integ_size)/pfb_rate;
data_cols[accumid].stpspec = freq_heap->spectrum_cntr;
/* Add spectrum to appropriate vector accumulator (high-bw mode) */
if(payload_type == INT_PAYLOAD)
{
for(i = 0; i < sf.hdr.nchan; i++)
{
for(j = 0; j < sf.hdr.nsubband; j++)
{
for(k = 0; k < NUM_STOKES; k++)
{
accumulator[accumid]
[i*sf.hdr.nsubband*NUM_STOKES + j*NUM_STOKES + k] +=
(float)i_payload[i*sf.hdr.nsubband*NUM_STOKES + j*NUM_STOKES + k];
}
}
}
}
/* Add spectrum to appropriate vector accumulator (low-bw mode) */
else
{
for(i = 0; i < sf.hdr.nchan; i++)
{
for(j = 0; j < sf.hdr.nsubband; j++)
{
for(k = 0; k < NUM_STOKES; k++)
{
accumulator[accumid]
[i*sf.hdr.nsubband*NUM_STOKES + j*NUM_STOKES + k] +=
f_payload[i*sf.hdr.nsubband*NUM_STOKES + j*NUM_STOKES + k];
}
}
}
}
}
accum_time += (double)freq_heap->integ_size / pfb_rate;
}
/* Update packet count and loss fields from input header */
nblock_int++;
npacket += gp.num_pkts_rcvd;
n_pkt_drop += gp.num_pkts_dropped;
/* Done with current input block */
guppi_databuf_set_free(db_in, curblock_in);
curblock_in = (curblock_in + 1) % db_in->n_block;
/* Check for cancel */
pthread_testcancel();
}
pthread_exit(NULL);
pthread_cleanup_pop(0); /* Closes set_exit_status */
pthread_cleanup_pop(0); /* Closes set_finished */
pthread_cleanup_pop(0); /* Closes guppi_free_sdfits */
pthread_cleanup_pop(0); /* Closes ? */
pthread_cleanup_pop(0); /* Closes destroy_accumulators */
pthread_cleanup_pop(0); /* Closes guppi_status_detach */
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach */
}
void guppi_psrfits_thread(void *_args) {
/* Get args */
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
pthread_cleanup_push((void *)guppi_thread_set_finished, args);
/* Set cpu affinity */
cpu_set_t cpuset, cpuset_orig;
sched_getaffinity(0, sizeof(cpu_set_t), &cpuset_orig);
CPU_ZERO(&cpuset);
CPU_SET(1, &cpuset);
int rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("guppi_psrfits_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, args->priority);
if (rv<0) {
guppi_error("guppi_psrfits_thread", "Error setting priority level.");
perror("set_priority");
}
/* Attach to status shared mem area */
struct guppi_status st;
rv = guppi_status_attach(&st);
if (rv!=GUPPI_OK) {
guppi_error("guppi_psrfits_thread",
"Error attaching to status shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_status_detach, &st);
pthread_cleanup_push((void *)set_exit_status, &st);
/* Init status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "init");
guppi_status_unlock_safe(&st);
/* Initialize some key parameters */
struct guppi_params gp;
struct psrfits pf;
pf.sub.data = NULL;
pf.sub.dat_freqs = pf.sub.dat_weights = NULL;
pf.sub.dat_offsets = pf.sub.dat_scales = NULL;
pf.hdr.chan_dm = 0.0;
pf.filenum = 0; // This is crucial
pthread_cleanup_push((void *)guppi_free_psrfits, &pf);
pthread_cleanup_push((void *)psrfits_close, &pf);
//pf.multifile = 0; // Use a single file for fold mode
pf.multifile = 1; // Use a multiple files for fold mode
pf.quiet = 0; // Print a message per each subint written
/* Attach to databuf shared mem */
struct guppi_databuf *db;
db = guppi_databuf_attach(args->input_buffer);
if (db==NULL) {
guppi_error("guppi_psrfits_thread",
"Error attaching to databuf shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db);
/* Loop */
int curblock=0, total_status=0, firsttime=1, run=1, got_packet_0=0;
int mode=SEARCH_MODE;
char *ptr;
char tmpstr[256];
struct foldbuf fb;
struct polyco pc[64];
memset(pc, 0, sizeof(pc));
int n_polyco_written=0;
float *fold_output_array = NULL;
int scan_finished=0;
signal(SIGINT, cc);
do {
/* Note waiting status */
guppi_status_lock_safe(&st);
if (got_packet_0)
sprintf(tmpstr, "waiting(%d)", curblock);
else
sprintf(tmpstr, "ready");
hputs(st.buf, STATUS_KEY, tmpstr);
guppi_status_unlock_safe(&st);
/* Wait for buf to have data */
rv = guppi_databuf_wait_filled(db, curblock);
if (rv!=0) {
// This is a big ol' kludge to avoid this process hanging
// due to thread synchronization problems.
sleep(1);
continue;
}
/* Note current block */
guppi_status_lock_safe(&st);
hputi4(st.buf, "CURBLOCK", curblock);
guppi_status_unlock_safe(&st);
/* See how full databuf is */
total_status = guppi_databuf_total_status(db);
/* Read param structs for this block */
ptr = guppi_databuf_header(db, curblock);
if (firsttime) {
guppi_read_obs_params(ptr, &gp, &pf);
firsttime = 0;
} else {
guppi_read_subint_params(ptr, &gp, &pf);
}
/* Find out what mode this data is in */
mode = psrfits_obs_mode(pf.hdr.obs_mode);
/* Check if we got both packet 0 and a valid observation
* start time. If so, flag writing to start.
*/
if (got_packet_0==0 && gp.packetindex==0 && gp.stt_valid==1) {
got_packet_0 = 1;
guppi_read_obs_params(ptr, &gp, &pf);
guppi_update_ds_params(&pf);
memset(pc, 0, sizeof(pc));
n_polyco_written=0;
}
/* If actual observation has started, write the data */
if (got_packet_0) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "writing");
guppi_status_unlock_safe(&st);
/* Get the pointer to the current data */
if (mode==FOLD_MODE) {
fb.nchan = pf.hdr.nchan;
fb.npol = pf.hdr.npol;
fb.nbin = pf.hdr.nbin;
fb.data = (float *)guppi_databuf_data(db, curblock);
fb.count = (unsigned *)(guppi_databuf_data(db, curblock)
+ foldbuf_data_size(&fb));
fold_output_array = (float *)realloc(fold_output_array,
sizeof(float) * pf.hdr.nbin * pf.hdr.nchan *
pf.hdr.npol);
pf.sub.data = (unsigned char *)fold_output_array;
pf.fold.pc = (struct polyco *)(guppi_databuf_data(db,curblock)
+ foldbuf_data_size(&fb) + foldbuf_count_size(&fb));
} else
pf.sub.data = (unsigned char *)guppi_databuf_data(db, curblock);
/* Set the DC and Nyquist channels explicitly to zero */
/* because of the "FFT Problem" that splits DC power */
/* into those two bins. */
zero_end_chans(&pf);
/* Output only Stokes I (in place) */
if (pf.hdr.onlyI && pf.hdr.npol==4)
get_stokes_I(&pf);
/* Downsample in frequency (in place) */
if (pf.hdr.ds_freq_fact > 1)
downsample_freq(&pf);
/* Downsample in time (in place) */
if (pf.hdr.ds_time_fact > 1)
downsample_time(&pf);
/* Folded data needs a transpose */
if (mode==FOLD_MODE)
normalize_transpose_folds(fold_output_array, &fb);
/* Write the data */
int last_filenum = pf.filenum;
psrfits_write_subint(&pf);
/* Any actions that need to be taken when a new file
* is created.
*/
if (pf.filenum!=last_filenum) {
/* No polycos yet written to the new file */
n_polyco_written=0;
}
/* Write the polycos if needed */
int write_pc=0, i, j;
for (i=0; i<pf.fold.n_polyco_sets; i++) {
if (pf.fold.pc[i].used==0) continue;
int new_pc=1;
for (j=0; j<n_polyco_written; j++) {
if (polycos_differ(&pf.fold.pc[i], &pc[j])==0) {
new_pc=0;
break;
}
}
if (new_pc || n_polyco_written==0) {
pc[n_polyco_written] = pf.fold.pc[i];
n_polyco_written++;
write_pc=1;
} else {
pf.fold.pc[i].used = 0; // Already have this one
}
}
if (write_pc)
psrfits_write_polycos(&pf, pf.fold.pc, pf.fold.n_polyco_sets);
/* Is the scan complete? */
if ((pf.hdr.scanlen > 0.0) &&
(pf.T > pf.hdr.scanlen)) scan_finished = 1;
/* For debugging... */
if (gp.drop_frac > 0.0) {
printf("Block %d dropped %.3g%% of the packets\n",
pf.tot_rows, gp.drop_frac*100.0);
}
}
/* Mark as free */
guppi_databuf_set_free(db, curblock);
/* Go to next block */
curblock = (curblock + 1) % db->n_block;
/* Check for cancel */
pthread_testcancel();
} while (run && !scan_finished);
/* Cleanup */
if (fold_output_array!=NULL) free(fold_output_array);
pthread_exit(NULL);
pthread_cleanup_pop(0); /* Closes psrfits_close */
pthread_cleanup_pop(0); /* Closes guppi_free_psrfits */
pthread_cleanup_pop(0); /* Closes set_exit_status */
pthread_cleanup_pop(0); /* Closes set_finished */
pthread_cleanup_pop(0); /* Closes guppi_status_detach */
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach */
}
void guppi_rawdisk_thread(void *_args) {
/* Set cpu affinity */
cpu_set_t cpuset, cpuset_orig;
sched_getaffinity(0, sizeof(cpu_set_t), &cpuset_orig);
CPU_ZERO(&cpuset);
CPU_SET(1, &cpuset);
int rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("guppi_rawdisk_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Get args */
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, 0);
if (rv<0) {
guppi_error("guppi_rawdisk_thread", "Error setting priority level.");
perror("set_priority");
}
/* Attach to status shared mem area */
struct guppi_status st;
rv = guppi_status_attach(&st);
if (rv!=GUPPI_OK) {
guppi_error("guppi_rawdisk_thread",
"Error attaching to status shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_status_detach, &st);
pthread_cleanup_push((void *)set_exit_status, &st);
/* Init status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "init");
guppi_status_unlock_safe(&st);
/* Read in general parameters */
struct guppi_params gp;
#if FITS_TYPE == PSRFITS
struct sdfits pf;
pf.sub.dat_freqs = NULL;
pf.sub.dat_weights = NULL;
pf.sub.dat_offsets = NULL;
pf.sub.dat_scales = NULL;
pthread_cleanup_push((void *)guppi_free_psrfits, &pf);
#else
struct sdfits pf;
pthread_cleanup_push((void *)guppi_free_sdfits, &pf);
#endif
/* Attach to databuf shared mem */
struct guppi_databuf *db;
db = guppi_databuf_attach(args->input_buffer);
if (db==NULL) {
guppi_error("guppi_rawdisk_thread",
"Error attaching to databuf shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db);
/* Init output file */
FILE *fraw = NULL;
pthread_cleanup_push((void *)safe_fclose, fraw);
/* Pointers for quantization params */
double *mean = NULL;
double *std = NULL;
printf("casper: raw disk thread created and running\n");
/* Loop */
int packetidx=0, npacket=0, ndrop=0, packetsize=0, blocksize=0;
int orig_blocksize=0;
int curblock=0;
int block_count=0, blocks_per_file=128, filenum=0;
int got_packet_0=0, first=1;
int requantize = 0;
char *ptr, *hend;
signal(SIGINT,cc);
while (run_threads) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "waiting");
guppi_status_unlock_safe(&st);
/* Wait for buf to have data */
rv = guppi_databuf_wait_filled(db, curblock);
if (rv!=0) continue;
printf("casper: raw disk thread rcvd data.\n");
/* Read param struct for this block */
ptr = guppi_databuf_header(db, curblock);
if (first) {
guppi_read_obs_params(ptr, &gp, &pf);
first = 0;
} else {
guppi_read_subint_params(ptr, &gp, &pf);
}
/* Parse packet size, npacket from header */
hgeti4(ptr, "PKTIDX", &packetidx);
hgeti4(ptr, "PKTSIZE", &packetsize);
hgeti4(ptr, "NPKT", &npacket);
hgeti4(ptr, "NDROP", &ndrop);
#if FITS_TYPE == PSR_FITS
/* Check for re-quantization flag */
int nbits_req = 0;
if (hgeti4(ptr, "NBITSREQ", &nbits_req) == 0) {
/* Param not present, don't requantize */
requantize = 0;
} else {
/* Param is present */
if (nbits_req==8)
requantize = 0;
else if (nbits_req==2)
requantize = 1;
else
/* Invalid selection for requested nbits
* .. die or ignore?
*/
requantize = 0;
}
#endif
/* Set up data ptr for quant routines */
#if FITS_TYPE == PSR_FITS
pf.sub.data = (unsigned char *)guppi_databuf_data(db, curblock);
#else
pf.data_columns.data = (unsigned char *)guppi_databuf_data(db, curblock);
#endif
/* Wait for packet 0 before starting write */
if (got_packet_0==0 && packetidx==0 && gp.stt_valid==1) {
got_packet_0 = 1;
guppi_read_obs_params(ptr, &gp, &pf);
#if FITS_TYPE == PSR_FITS
orig_blocksize = pf.sub.bytes_per_subint;
#endif
char fname[256];
sprintf(fname, "%s.%4.4d.raw", pf.basefilename, filenum);
fprintf(stderr, "Opening raw file '%s'\n", fname);
// TODO: check for file exist.
fraw = fopen(fname, "w");
if (fraw==NULL) {
guppi_error("guppi_rawdisk_thread", "Error opening file.");
pthread_exit(NULL);
}
#if FITS_TYPE == PSR_FITS
/* Determine scaling factors for quantization if appropriate */
if (requantize) {
mean = (double *)realloc(mean,
pf.hdr.rcvr_polns * pf.hdr.nchan * sizeof(double));
std = (double *)realloc(std,
pf.hdr.rcvr_polns * pf.hdr.nchan * sizeof(double));
compute_stat(&pf, mean, std);
fprintf(stderr, "Computed 2-bit stats\n");
}
#endif
}
/* See if we need to open next file */
if (block_count >= blocks_per_file) {
fclose(fraw);
filenum++;
char fname[256];
sprintf(fname, "%s.%4.4d.raw", pf.basefilename, filenum);
fprintf(stderr, "Opening raw file '%s'\n", fname);
fraw = fopen(fname, "w");
if (fraw==NULL) {
guppi_error("guppi_rawdisk_thread", "Error opening file.");
pthread_exit(NULL);
}
block_count=0;
}
/* See how full databuf is */
//total_status = guppi_databuf_total_status(db);
/* Requantize from 8 bits to 2 bits if necessary.
* See raw_quant.c for more usage examples.
*/
#if FITS_TYPE == PSR_FITS
if (requantize && got_packet_0) {
pf.sub.bytes_per_subint = orig_blocksize;
/* Does the quantization in-place */
quantize_2bit(&pf, mean, std);
/* Update some parameters for output */
hputi4(ptr, "BLOCSIZE", pf.sub.bytes_per_subint);
hputi4(ptr, "NBITS", pf.hdr.nbits);
}
#endif
/* Get full data block size */
hgeti4(ptr, "BLOCSIZE", &blocksize);
/* If we got packet 0, write data to disk */
if (got_packet_0) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "writing");
guppi_status_unlock_safe(&st);
/* Write header to file */
hend = ksearch(ptr, "END");
for (ptr=ptr; ptr<=hend; ptr+=80) {
fwrite(ptr, 80, 1, fraw);
}
/* Write data */
printf("block size: %d\n", blocksize);
ptr = guppi_databuf_data(db, curblock);
rv = fwrite(ptr, 1, (size_t)blocksize, fraw);
if (rv != blocksize) {
guppi_error("guppi_rawdisk_thread",
"Error writing data.");
}
/* Increment counter */
block_count++;
/* flush output */
fflush(fraw);
}
/* Mark as free */
guppi_databuf_set_free(db, curblock);
/* Go to next block */
curblock = (curblock + 1) % db->n_block;
/* Check for cancel */
pthread_testcancel();
}
pthread_exit(NULL);
pthread_cleanup_pop(0); /* Closes fclose */
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach */
pthread_cleanup_pop(0); /* Closes guppi_free_psrfits */
pthread_cleanup_pop(0); /* Closes set_exit_status */
pthread_cleanup_pop(0); /* Closes guppi_status_detach */
}
void guppi_null_thread(void *_args) {
int rv;
/* Set cpu affinity */
cpu_set_t cpuset, cpuset_orig;
sched_getaffinity(0, sizeof(cpu_set_t), &cpuset_orig);
CPU_ZERO(&cpuset);
CPU_SET(6, &cpuset);
rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("guppi_null_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, 0);
if (rv<0) {
guppi_error("guppi_null_thread", "Error setting priority level.");
perror("set_priority");
}
/* Get args */
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
/* Attach to status shared mem area */
struct guppi_status st;
rv = guppi_status_attach(&st);
if (rv!=GUPPI_OK) {
guppi_error("guppi_null_thread",
"Error attaching to status shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_status_detach, &st);
pthread_cleanup_push((void *)set_exit_status, &st);
/* Init status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "init");
guppi_status_unlock_safe(&st);
/* Attach to databuf shared mem */
struct guppi_databuf *db;
db = guppi_databuf_attach(args->input_buffer);
if (db==NULL) {
guppi_error("guppi_null_thread",
"Error attaching to databuf shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db);
/* Loop */
char *ptr;
struct guppi_params gp;
#if FITS_TYPE == PSRFITS
struct psrfits pf;
pf.sub.dat_freqs = NULL;
pf.sub.dat_weights = NULL;
pf.sub.dat_offsets = NULL;
pf.sub.dat_scales = NULL;
pthread_cleanup_push((void *)guppi_free_psrfits, &pf);
#else
struct sdfits pf;
pthread_cleanup_push((void *)guppi_free_sdfits, &pf);
#endif
int curblock=0;
signal(SIGINT,cc);
while (run_threads) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "waiting");
guppi_status_unlock_safe(&st);
/* Wait for buf to have data */
rv = guppi_databuf_wait_filled(db, curblock);
if (rv!=0) {
//sleep(1);
continue;
}
/* Note waiting status, current block */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "discarding");
hputi4(st.buf, "DSKBLKIN", curblock);
guppi_status_unlock_safe(&st);
/* Get params */
ptr = guppi_databuf_header(db, curblock);
guppi_read_obs_params(ptr, &gp, &pf);
/* Output if data was lost */
#if FITS_TYPE == PSRFITS
if (gp.n_dropped!=0 &&
(gp.packetindex==0 || strcmp(pf.hdr.obs_mode,"SEARCH"))) {
printf("Block beginning with pktidx=%lld dropped %d packets\n",
gp.packetindex, gp.n_dropped);
fflush(stdout);
}
#else
if (gp.num_pkts_dropped!=0 && gp.num_pkts_rcvd!=0) {
printf("Block received %d packets and dropped %d packets\n",
gp.num_pkts_rcvd, gp.num_pkts_dropped);
fflush(stdout);
}
#endif
/* Mark as free */
guppi_databuf_set_free(db, curblock);
/* Go to next block */
curblock = (curblock + 1) % db->n_block;
/* Check for cancel */
pthread_testcancel();
}
pthread_exit(NULL);
pthread_cleanup_pop(0); /* Closes set_exit_status */
pthread_cleanup_pop(0); /* Closes guppi_free_psrfits */
pthread_cleanup_pop(0); /* Closes guppi_status_detach */
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach */
}
void vegas_pfb_thread(void *_args) {
/* Get args */
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
int rv;
/* Set cpu affinity */
cpu_set_t cpuset, cpuset_orig;
sched_getaffinity(0, sizeof(cpu_set_t), &cpuset_orig);
//CPU_ZERO(&cpuset);
CPU_CLR(13, &cpuset);
CPU_SET(11, &cpuset);
rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("vegas_pfb_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, args->priority);
if (rv<0) {
guppi_error("vegas_pfb_thread", "Error setting priority level.");
perror("set_priority");
}
/* Attach to status shared mem area */
struct guppi_status st;
rv = guppi_status_attach(&st);
if (rv!=GUPPI_OK) {
guppi_error("vegas_pfb_thread",
"Error attaching to status shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_status_detach, &st);
pthread_cleanup_push((void *)set_exit_status, &st);
pthread_cleanup_push((void *)guppi_thread_set_finished, args);
/* Init status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "init");
guppi_status_unlock_safe(&st);
/* Init structs */
struct guppi_params gp;
struct sdfits sf;
pthread_cleanup_push((void *)guppi_free_sdfits, &sf);
/* Attach to databuf shared mem */
struct guppi_databuf *db_in, *db_out;
db_in = guppi_databuf_attach(args->input_buffer);
if (db_in==NULL) {
char msg[256];
sprintf(msg, "Error attaching to databuf(%d) shared memory.",
args->input_buffer);
guppi_error("vegas_pfb_thread", msg);
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db_in);
db_out = guppi_databuf_attach(args->output_buffer);
if (db_out==NULL) {
char msg[256];
sprintf(msg, "Error attaching to databuf(%d) shared memory.",
args->output_buffer);
guppi_error("vegas_pfb_thread", msg);
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db_out);
/* Loop */
char *hdr_in = NULL;
int curblock_in=0;
int first=1;
int acc_len = 0;
int nchan = 0;
int nsubband = 0;
signal(SIGINT,cc);
guppi_status_lock_safe(&st);
if (hgeti4(st.buf, "NCHAN", &nchan)==0) {
fprintf(stderr, "ERROR: %s not in status shm!\n", "NCHAN");
}
if (hgeti4(st.buf, "NSUBBAND", &nsubband)==0) {
fprintf(stderr, "ERROR: %s not in status shm!\n", "NSUBBAND");
}
guppi_status_unlock_safe(&st);
if (EXIT_SUCCESS != init_gpu(db_in->block_size,
db_out->block_size,
nsubband,
nchan))
{
(void) fprintf(stderr, "ERROR: GPU initialisation failed!\n");
run = 0;
}
while (run) {
/* Note waiting status */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "waiting");
guppi_status_unlock_safe(&st);
/* Wait for buf to have data */
rv = guppi_databuf_wait_filled(db_in, curblock_in);
if (rv!=0) continue;
/* Note waiting status, current input block */
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "processing");
hputi4(st.buf, "PFBBLKIN", curblock_in);
guppi_status_unlock_safe(&st);
hdr_in = guppi_databuf_header(db_in, curblock_in);
/* Get params */
if (first)
{
guppi_read_obs_params(hdr_in, &gp, &sf);
/* Read required exposure from status shared memory, and calculate
corresponding accumulation length */
acc_len = (sf.hdr.chan_bw * sf.hdr.hwexposr);
}
guppi_read_subint_params(hdr_in, &gp, &sf);
/* Call PFB function */
do_pfb(db_in, curblock_in, db_out, first, st, acc_len);
/* Mark input block as free */
guppi_databuf_set_free(db_in, curblock_in);
/* Go to next input block */
curblock_in = (curblock_in + 1) % db_in->n_block;
/* Check for cancel */
pthread_testcancel();
if (first) {
first=0;
}
}
run=0;
//cudaThreadExit();
pthread_exit(NULL);
cleanup_gpu();
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach(out) */
pthread_cleanup_pop(0); /* Closes guppi_databuf_detach(in) */
pthread_cleanup_pop(0); /* Closes guppi_free_sdfits */
pthread_cleanup_pop(0); /* Closes guppi_thread_set_finished */
pthread_cleanup_pop(0); /* Closes set_exit_status */
pthread_cleanup_pop(0); /* Closes guppi_status_detach */
}