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 */
}
/* 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 */
}
int main(int argc, char *argv[]) {
struct guppi_params gf;
struct psrfits pf;
char buf[32768];
char partfilename[250]; //file name for first part of file
int filepos=0;
size_t rv=0;
long unsigned int by=0;
FILE *fil = NULL; //input file
FILE *partfil = NULL; //partial file
int x,y,z;
int a,b,c;
int vflag=0; //verbose
if(argc < 2) {
print_usage(argv);
exit(1);
}
opterr = 0;
while ((c = getopt (argc, argv, "Vvi:o:")) != -1)
switch (c)
{
case 'v':
vflag = 1;
break;
case 'V':
vflag = 2;
break;
case 'i':
sprintf(pf.basefilename, optarg);
fil = fopen(pf.basefilename, "rb");
break;
case 'o':
sprintf(partfilename, optarg);
if(strcmp(partfilename, "stdout")==0) {
partfil = stdout;
} else {
partfil = fopen(partfilename, "wb");
}
break;
case '?':
if (optopt == 'i' || optopt == 'o')
fprintf (stderr, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else
fprintf (stderr,
"Unknown option character `\\x%x'.\n",
optopt);
return 1;
default:
abort ();
}
pf.filenum=1;
pf.sub.dat_freqs = (float *)malloc(sizeof(float) * pf.hdr.nchan);
pf.sub.dat_weights = (float *)malloc(sizeof(float) * pf.hdr.nchan);
pf.sub.dat_offsets = (float *)malloc(sizeof(float)
* pf.hdr.nchan * pf.hdr.npol);
pf.sub.dat_scales = (float *)malloc(sizeof(float)
* pf.hdr.nchan * pf.hdr.npol);
pf.sub.data = (unsigned char *)malloc(pf.sub.bytes_per_subint);
if(!fil || !partfil) {
fprintf(stderr, "must specify input/output files\n");
print_usage(argv);
exit(1);
}
filepos=0;
while(fread(buf, sizeof(char), 32768, fil)==32768) {
fseek(fil, -32768, SEEK_CUR);
//printf("lhead: %d", lhead0);
if(vflag>=1) fprintf(stderr, "length: %d\n", gethlength(buf));
guppi_read_obs_params(buf, &gf, &pf);
//printf("%d\n", pf.hdr.nchan);
if(vflag>=1) fprintf(stderr, "size %d\n",pf.sub.bytes_per_subint + gethlength(buf));
by = by + pf.sub.bytes_per_subint + gethlength(buf);
if(vflag>=1) fprintf(stderr, "mjd %Lf\n", pf.hdr.MJD_epoch);
if(vflag>=1) fprintf(stderr, "zen: %f\n\n", pf.sub.tel_zen);
fprintf(stderr, "%s packetindex %Ld\n", pf.basefilename, gf.packetindex);
fprintf(stderr, "packetsize: %d\n", gf.packetsize);
fprintf(stderr, "n_packets %d\n", gf.n_packets);
fprintf(stderr, "n_dropped: %d\n", gf.n_dropped);
fprintf(stderr, "bytecnt: %d\n", pf.sub.bytes_per_subint);
fprintf(stderr, "drop_frac_tot: %f\n\n", gf.drop_frac_tot);
if (pf.sub.data) free(pf.sub.data);
pf.sub.data = (unsigned char *)malloc(pf.sub.bytes_per_subint);
fseek(fil, gethlength(buf), SEEK_CUR);
rv=fread(pf.sub.data, sizeof(char), pf.sub.bytes_per_subint, fil);
if((long int)rv == pf.sub.bytes_per_subint){
if(vflag>=1) fprintf(stderr, "%i\n", filepos);
if(vflag>=1) fprintf(stderr, "pos: %ld %d\n", ftell(fil),feof(fil));
if(filepos == 0) {
//fwrite(buf, sizeof(char), gethlength(buf), partfil); //write header
//fwrite(pf.sub.data, sizeof(char), pf.sub.bytes_per_subint, partfil); //write data
//fclose(partfil);
//fclose(fil);
//exit(0);
}
filepos++;
} else {
if(vflag>=1) fprintf(stderr, "only read %ld bytes...\n", (long int) rv);
}
}
if(vflag>=1) fprintf(stderr, "bytes: %ld\n",by);
if(vflag>=1) fprintf(stderr, "pos: %ld %d\n", ftell(fil),feof(fil));
fclose(partfil);
fclose(fil);
exit(1);
}
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 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 */
}
/* This thread is passed a single arg, pointer
* to the guppi_udp_params struct. This thread should
* be cancelled and restarted if any hardware params
* change, as this potentially affects packet size, etc.
*/
void *guppi_fake_net_thread(void *_args) {
/* 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_SET(2, &cpuset);
CPU_SET(3, &cpuset);
int rv = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
if (rv<0) {
guppi_error("guppi_fake_net_thread", "Error setting cpu affinity.");
perror("sched_setaffinity");
}
/* Set priority */
rv = setpriority(PRIO_PROCESS, 0, args->priority);
if (rv<0) {
guppi_error("guppi_fake_net_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_fake_net_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, read info */
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 psrfits pf;
pf.sub.dat_freqs = NULL;
pf.sub.dat_weights = NULL;
pf.sub.dat_offsets = NULL;
pf.sub.dat_scales = NULL;
#else
struct sdfits pf;
#endif
char status_buf[GUPPI_STATUS_SIZE];
guppi_status_lock_safe(&st);
memcpy(status_buf, st.buf, GUPPI_STATUS_SIZE);
guppi_status_unlock_safe(&st);
guppi_read_obs_params(status_buf, &gp, &pf);
#if FITS_TYPE == PSRFITS
pthread_cleanup_push((void *)guppi_free_psrfits, &pf);
#else
pthread_cleanup_push((void *)guppi_free_sdfits, &pf);
#endif
/* Attach to databuf shared mem */
struct guppi_databuf *db;
db = guppi_databuf_attach(args->output_buffer);
if (db==NULL) {
guppi_error("guppi_fake_net_thread",
"Error attaching to databuf shared memory.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_databuf_detach, db);
/* Time parameters */
int stt_imjd=0, stt_smjd=0;
double stt_offs=0.0;
/* Figure out size of data in each packet, number of packets
* per block, etc. Changing packet size during an obs is not
* recommended.
*/
int block_size;
if (hgeti4(status_buf, "BLOCSIZE", &block_size)==0) {
block_size = db->block_size;
hputi4(status_buf, "BLOCSIZE", block_size);
} else {
if (block_size > db->block_size) {
guppi_error("guppi_net_thread", "BLOCSIZE > databuf block_size");
block_size = db->block_size;
hputi4(status_buf, "BLOCSIZE", block_size);
}
}
unsigned heaps_per_block = block_size / sizeof(struct freq_spead_heap);
/* List of databuf blocks currently in use */
unsigned i;
const int nblock = 2;
struct fake_datablock_stats blocks[nblock];
for (i=0; i<nblock; i++)
fake_init_block(&blocks[i], db, sizeof(struct freq_spead_heap), heaps_per_block);
/* Convenience names for first/last blocks in set */
struct fake_datablock_stats *fblock, *lblock;
fblock = &blocks[0];
lblock = &blocks[nblock-1];
/* Misc counters, etc */
char *curdata=NULL, *curheader=NULL, *curindex=NULL;
int first_time = 1;
int heap_cntr = 0, next_block_heap_cntr = heaps_per_block;
/* Main loop */
unsigned force_new_block=0, waiting=-1;
signal(SIGINT,cc);
while (run_threads) {
/* Wait for data */
struct timespec sleep_dur, rem_sleep_dur;
sleep_dur.tv_sec = 0;
sleep_dur.tv_nsec = 2e6;
nanosleep(&sleep_dur, &rem_sleep_dur);
/* Update status if needed */
if (waiting!=0) {
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "receiving");
guppi_status_unlock_safe(&st);
waiting=0;
}
/* Convert packet format if needed */
if (first_time)
{
first_time = 0;
force_new_block=1;
}
else
force_new_block=0;
/* Determine if we go to next block */
if ((heap_cntr>=next_block_heap_cntr) || force_new_block) {
printf("casper: going to next shared memory block\n");
/* Update drop stats */
guppi_status_lock_safe(&st);
hputr8(st.buf, "DROPAVG", 0.0);
hputr8(st.buf, "DROPTOT", 0.0);
hputr8(st.buf, "DROPBLK", 0.0);
guppi_status_unlock_safe(&st);
/* Finalize first block, and push it off the list.
* Then grab next available block.
*/
if (fblock->block_idx>=0) fake_finalize_block(fblock);
fake_block_stack_push(blocks, nblock);
fake_increment_block(lblock, heap_cntr);
curdata = guppi_databuf_data(db, lblock->block_idx);
curheader = guppi_databuf_header(db, lblock->block_idx);
curindex = guppi_databuf_index(db, lblock->block_idx);
next_block_heap_cntr = lblock->heap_idx + heaps_per_block;
/* If new obs started, reset total counters, get start
* time. Start time is rounded to nearest integer
* second, with warning if we're off that by more
* than 100ms. Any current blocks on the stack
* are also finalized/reset */
if (force_new_block) {
/* Get obs start time */
get_current_mjd(&stt_imjd, &stt_smjd, &stt_offs);
if (stt_offs>0.5) { stt_smjd+=1; stt_offs-=1.0; }
stt_offs = 0.0;
/* Flush any current buffers */
for (i=0; i<nblock-1; i++) {
if (blocks[i].block_idx>=0)
fake_finalize_block(&blocks[i]);
fake_reset_block(&blocks[i]);
}
}
/* Read/update current status shared mem */
guppi_status_lock_safe(&st);
if (stt_imjd!=0) {
#if 1
hputi4(st.buf, "STT_IMJD", stt_imjd);
hputi4(st.buf, "STT_SMJD", stt_smjd);
hputr8(st.buf, "STT_OFFS", stt_offs);
#endif
hputi4(st.buf, "STTVALID", 1);
} else {
hputi4(st.buf, "STTVALID", 0);
}
memcpy(status_buf, st.buf, GUPPI_STATUS_SIZE);
guppi_status_unlock_safe(&st);
/* Wait for new block to be free, then clear it
* if necessary and fill its header with new values.
*/
while ((rv=guppi_databuf_wait_free(db, lblock->block_idx))
!= GUPPI_OK) {
if (rv==GUPPI_TIMEOUT) {
waiting=1;
guppi_status_lock_safe(&st);
hputs(st.buf, STATUS_KEY, "blocked");
guppi_status_unlock_safe(&st);
continue;
} else {
guppi_error("guppi_fake_net_thread",
"error waiting for free databuf");
run_threads=0;
pthread_exit(NULL);
break;
}
}
memcpy(curheader, status_buf, GUPPI_STATUS_SIZE);
memset(curdata, 0, block_size);
memset(curindex, 0, db->index_size);
}
/*Write fake data to block */
write_fake_heap_to_block(lblock, heap_cntr);
heap_cntr++;
/* Will exit if thread has been cancelled */
pthread_testcancel();
}
pthread_exit(NULL);
/* Have to close all push's */
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 */
}
int main(int argc, char *argv[]) {
struct guppi_params gf;
struct psrfits pf;
char buf[32768];
char quantfilename[250]; //file name for quantized file
int filepos=0;
size_t rv=0;
int by=0;
FILE *fil = NULL; //input file
FILE *quantfil = NULL; //quantized file
int x,y,z;
int a,b,c;
int sample;
double running_sum;
double running_sum_sq;
double mean[32][2]; //shouldn't be more than 32 dual pol channels in a file for our obs
double std[32][2];
int vflag=0; //verbose
if(argc < 2) {
print_usage(argv);
exit(1);
}
opterr = 0;
while ((c = getopt (argc, argv, "Vvi:o:")) != -1)
switch (c)
{
case 'v':
vflag = 1;
break;
case 'V':
vflag = 2;
break;
case 'i':
sprintf(pf.basefilename, optarg);
fil = fopen(pf.basefilename, "rb");
break;
case 'o':
sprintf(quantfilename, optarg);
if(strcmp(quantfilename, "stdout")==0) {
quantfil = stdout;
} else {
quantfil = fopen(quantfilename, "wb");
}
break;
case '?':
if (optopt == 'i' || optopt == 'o')
fprintf (stderr, "Option -%c requires an argument.\n", optopt);
else if (isprint (optopt))
fprintf (stderr, "Unknown option `-%c'.\n", optopt);
else
fprintf (stderr,
"Unknown option character `\\x%x'.\n",
optopt);
return 1;
default:
abort ();
}
pf.filenum=1;
pf.sub.dat_freqs = (float *)malloc(sizeof(float) * pf.hdr.nchan);
pf.sub.dat_weights = (float *)malloc(sizeof(float) * pf.hdr.nchan);
pf.sub.dat_offsets = (float *)malloc(sizeof(float)
* pf.hdr.nchan * pf.hdr.npol);
pf.sub.dat_scales = (float *)malloc(sizeof(float)
* pf.hdr.nchan * pf.hdr.npol);
pf.sub.data = (unsigned char *)malloc(pf.sub.bytes_per_subint);
if(!fil || !quantfil) {
fprintf(stderr, "must specify input/output files\n");
print_usage(argv);
exit(1);
}
filepos=0;
while(fread(buf, sizeof(char), 32768, fil)==32768) {
fseek(fil, -32768, SEEK_CUR);
//printf("lhead: %d", lhead0);
if(vflag>=1) fprintf(stderr, "length: %d\n", gethlength(buf));
guppi_read_obs_params(buf, &gf, &pf);
printf("%d\n", pf.hdr.nbits);
if(vflag>=1) fprintf(stderr, "size %d\n",pf.sub.bytes_per_subint + gethlength(buf));
by = by + pf.sub.bytes_per_subint + gethlength(buf);
if(vflag>=1) fprintf(stderr, "mjd %Lf\n", pf.hdr.MJD_epoch);
if(vflag>=1) fprintf(stderr, "zen: %f\n\n", pf.sub.tel_zen);
if (pf.sub.data) free(pf.sub.data);
pf.sub.data = (unsigned char *)malloc(pf.sub.bytes_per_subint);
fseek(fil, gethlength(buf), SEEK_CUR);
rv=fread(pf.sub.data, sizeof(char), pf.sub.bytes_per_subint, fil);
if((long int)rv == pf.sub.bytes_per_subint){
if(vflag>=1) fprintf(stderr, "%i\n", filepos);
if(vflag>=1) fprintf(stderr, "pos: %ld %d\n", ftell(fil),feof(fil));
if(filepos == 0) {
/* calulcate mean and rms for each channel-polarization */
/* we'll treat the real and imaginary parts identically - considering them as 2 samples/period) */
/*
for(x=0;x < pf.hdr.nchan; x = x + 1) {
for(y=0;y<pf.hdr.rcvr_polns;y=y+1) {
running_sum = 0;
running_sum_sq = 0;
for(z=0;z < pf.sub.bytes_per_subint/pf.hdr.nchan; z = z + (pf.hdr.rcvr_polns * 2)){
//pol 0, real imag
//real
sample = (int) ((signed char) pf.sub.data[(x * pf.sub.bytes_per_subint/pf.hdr.nchan) + z + (y * 2)]);
running_sum = running_sum + (double) sample;
//imag
sample = (int) ((signed char) pf.sub.data[(x * pf.sub.bytes_per_subint/pf.hdr.nchan) + z + (y * 2) + 1]);
running_sum = running_sum + (double) sample;
}
mean[x][y] = running_sum / (double) (pf.sub.bytes_per_subint/(pf.hdr.nchan * pf.hdr.rcvr_polns) );
for(z=0;z < pf.sub.bytes_per_subint/pf.hdr.nchan; z = z + (pf.hdr.rcvr_polns * 2)){
//sample = (int) ((signed char) pf.sub.data[(x * pf.sub.bytes_per_subint/pf.hdr.nchan) + z]);
//real
sample = (int) ((signed char) pf.sub.data[(x * pf.sub.bytes_per_subint/pf.hdr.nchan) + z + (y * 2)]);
running_sum_sq = running_sum_sq + pow( ((double) sample - mean[x][y]) , 2);
//imag
sample = (int) ((signed char) pf.sub.data[(x * pf.sub.bytes_per_subint/pf.hdr.nchan) + z + (y * 2) + 1]);
running_sum_sq = running_sum_sq + pow( ((double) sample - mean[x][y]) , 2);
}
std[x][y] = pow(running_sum_sq / ((double) (pf.sub.bytes_per_subint/(pf.hdr.nchan*pf.hdr.rcvr_polns)) - 1), 0.5);
if(vflag>=1) fprintf(stderr, "chan %d pol %d mean %f\n", x,y,mean[x][y]);
if(vflag>=1) fprintf(stderr, "chan %d pol %d std %f\n", x,y,std[x][y]);
}
}
*/
for(x=0;x<32;x++){
std[x][0] = 19;
mean[x][0] = 0;
std[x][1] = 19;
mean[x][1] = 0;
}
}
quantize_2bit_o(&pf, mean, std);
hputi4 (buf, "BLOCSIZE", pf.sub.bytes_per_subint);
hputi4 (buf,"NBITS",pf.hdr.nbits);
fwrite(buf, sizeof(char), gethlength(buf), quantfil); //write header
/* bytes_per_subint now updated to be the proper length */
fwrite(pf.sub.data, sizeof(char), pf.sub.bytes_per_subint, quantfil); //write data
filepos++;
//pol, time, frequency
// for(x=0; x < pf.sub.bytes_per_subint; x = x + 1) {
// fprintf(stderr, "old: %d", pf.sub.data[x]);
// if(pf.sub.data[x] > 127) { pf.sub.data[x] = pf.sub.data[x] - 256;
// fprintf(stderr, "new: %d", pf.sub.data[x]); }
// }
/*
for(x=0; x < pf.sub.bytes_per_subint/pf.hdr.nchan; x = x + (4 * sampsper)) {
power=0;
for(z=0;z<sampsper;z=z+4){
for(y=0;y<4;y++) {
sample = (int) pf.sub.data[x+y+(z*4)];
if(sample > 127) sample = sample - 256;
power = power + pow((double) sample, 2);
}
}
//printf("%d, %d\n", pf.sub.data[x], pf.sub.data[x+1]);
printf("%f\n",power);
}
*/
} else {
if(vflag>=1) fprintf(stderr, "only read %ld bytes...\n", (long int) rv);
}
}
if(vflag>=1) fprintf(stderr, "bytes: %d\n",by);
if(vflag>=1) fprintf(stderr, "pos: %ld %d\n", ftell(fil),feof(fil));
//fread(buf, sizeof(char), 32768, fil);
//guppi_read_obs_params(buf, &gf, &pf);
//printf("mjd %llf\n", pf.hdr.MJD_epoch);
//printf("zen: %f", pf.sub.tel_zen);
//while ((rv=psrfits_read_subint(&pf))==0) {
// printf("Read subint (file %d, row %d/%d)\n",
// pf.filenum, pf.rownum-1, pf.rows_per_file);
//}
//if (rv) { fits_report_error(stderr, rv); }
fclose(quantfil);
fclose(fil);
exit(0);
}
static void *run(void * _args)
{
// Cast _args
struct guppi_thread_args *args = (struct guppi_thread_args *)_args;
#ifdef DEBUG_SEMS
fprintf(stderr, "s/tid %lu/NET/' <<.\n", pthread_self());
#endif
THREAD_RUN_BEGIN(args);
THREAD_RUN_SET_AFFINITY_PRIORITY(args);
THREAD_RUN_ATTACH_STATUS(args->instance_id, st);
st_p = &st; // allow global (this source file) access to the status buffer
/* Attach to paper_input_databuf */
THREAD_RUN_ATTACH_DATABUF(args->instance_id, paper_input_databuf, db, args->output_buffer);
/* Read in general parameters */
struct guppi_params gp;
struct sdfits pf;
char status_buf[GUPPI_STATUS_SIZE];
guppi_status_lock_busywait_safe(st_p);
memcpy(status_buf, st_p->buf, GUPPI_STATUS_SIZE);
guppi_status_unlock_safe(st_p);
guppi_read_obs_params(status_buf, &gp, &pf);
pthread_cleanup_push((void *)guppi_free_sdfits, &pf);
/* Read network params */
struct guppi_udp_params up;
//guppi_read_net_params(status_buf, &up);
paper_read_net_params(status_buf, &up);
// Store bind host/port info etc in status buffer
guppi_status_lock_busywait_safe(&st);
hputs(st.buf, "BINDHOST", up.bindhost);
hputi4(st.buf, "BINDPORT", up.bindport);
hputu4(st.buf, "MISSEDFE", 0);
hputu4(st.buf, "MISSEDPK", 0);
hputs(st.buf, STATUS_KEY, "running");
guppi_status_unlock_safe(&st);
struct guppi_udp_packet p;
/* Give all the threads a chance to start before opening network socket */
sleep(1);
#ifndef TIMING_TEST
/* Set up UDP socket */
int rv = guppi_udp_init(&up);
if (rv!=GUPPI_OK) {
guppi_error("guppi_net_thread",
"Error opening UDP socket.");
pthread_exit(NULL);
}
pthread_cleanup_push((void *)guppi_udp_close, &up);
#endif
/* Main loop */
uint64_t packet_count = 0;
uint64_t elapsed_wait_ns = 0;
uint64_t elapsed_recv_ns = 0;
uint64_t elapsed_proc_ns = 0;
float ns_per_wait = 0.0;
float ns_per_recv = 0.0;
float ns_per_proc = 0.0;
struct timespec start, stop;
struct timespec recv_start, recv_stop;
signal(SIGINT,cc);
while (run_threads) {
#ifndef TIMING_TEST
/* Read packet */
clock_gettime(CLOCK_MONOTONIC, &recv_start);
do {
clock_gettime(CLOCK_MONOTONIC, &start);
p.packet_size = recv(up.sock, p.data, GUPPI_MAX_PACKET_SIZE, 0);
clock_gettime(CLOCK_MONOTONIC, &recv_stop);
} while (p.packet_size == -1 && (errno == EAGAIN || errno == EWOULDBLOCK) && run_threads);
if(!run_threads) break;
if (up.packet_size != p.packet_size) {
if (p.packet_size != -1) {
#ifdef DEBUG_NET
guppi_warn("guppi_net_thread", "Incorrect pkt size");
#endif
continue;
} else {
guppi_error("guppi_net_thread",
"guppi_udp_recv returned error");
perror("guppi_udp_recv");
pthread_exit(NULL);
}
}
#endif
packet_count++;
// Copy packet into any blocks where it belongs.
const uint64_t mcnt = write_paper_packet_to_blocks((paper_input_databuf_t *)db, &p);
clock_gettime(CLOCK_MONOTONIC, &stop);
elapsed_wait_ns += ELAPSED_NS(recv_start, start);
elapsed_recv_ns += ELAPSED_NS(start, recv_stop);
elapsed_proc_ns += ELAPSED_NS(recv_stop, stop);
if(mcnt != -1) {
// Update status
ns_per_wait = (float)elapsed_wait_ns / packet_count;
ns_per_recv = (float)elapsed_recv_ns / packet_count;
ns_per_proc = (float)elapsed_proc_ns / packet_count;
guppi_status_lock_busywait_safe(&st);
hputu8(st.buf, "NETMCNT", mcnt);
// Gbps = bits_per_packet / ns_per_packet
// (N_BYTES_PER_PACKET excludes header, so +8 for the header)
hputr4(st.buf, "NETGBPS", 8*(N_BYTES_PER_PACKET+8)/(ns_per_recv+ns_per_proc));
hputr4(st.buf, "NETWATNS", ns_per_wait);
hputr4(st.buf, "NETRECNS", ns_per_recv);
hputr4(st.buf, "NETPRCNS", ns_per_proc);
guppi_status_unlock_safe(&st);
// Start new average
elapsed_wait_ns = 0;
elapsed_recv_ns = 0;
elapsed_proc_ns = 0;
packet_count = 0;
}
#if defined TIMING_TEST || defined NET_TIMING_TEST
#define END_LOOP_COUNT (1*1000*1000)
static int loop_count=0;
static struct timespec tt_start, tt_stop;
if(loop_count == 0) {
clock_gettime(CLOCK_MONOTONIC, &tt_start);
}
//if(loop_count == 1000000) run_threads = 0;
if(loop_count == END_LOOP_COUNT) {
clock_gettime(CLOCK_MONOTONIC, &tt_stop);
int64_t elapsed = ELAPSED_NS(tt_start, tt_stop);
printf("processed %d packets in %.6f ms (%.3f us per packet)\n",
END_LOOP_COUNT, elapsed/1e6, elapsed/1e3/END_LOOP_COUNT);
exit(0);
}
loop_count++;
#endif
/* Will exit if thread has been cancelled */
pthread_testcancel();
}
/* Have to close all push's */
#ifndef TIMING_TEST
pthread_cleanup_pop(0); /* Closes push(guppi_udp_close) */
#endif
pthread_cleanup_pop(0); /* Closes guppi_free_psrfits */
THREAD_RUN_DETACH_DATAUF;
THREAD_RUN_DETACH_STATUS;
THREAD_RUN_END;
return NULL;
}
