def run_smd0_task(run):
global_procs = legion.Tunable.select(legion.Tunable.GLOBAL_PYS).get()
smdr_man = SmdReaderManager(run.smd_dm.fds, run.max_events)
for i, (smd_chunk, update_chunk) in enumerate(smdr_man.chunks()):
run_smd_task(smd_chunk, run, point=i)
# Block before returning so that the caller can use this task's future for synchronization
legion.execution_fence(block=True)
class Smd0(object):
""" Sends blocks of smds to smd_node
Identifies limit timestamp of the slowest detector then
sends all smds within that timestamp to an smd_node.
"""
def __init__(self, run):
self.smdr_man = SmdReaderManager(run)
self.run = run
self.step_hist = StepHistory(self.run.comms.smd_size,
len(self.run.configs))
self.run_mpi()
def run_mpi(self):
rankreq = np.empty(1, dtype='i')
for (smd_chunk, step_chunk) in self.smdr_man.chunks():
# Creates a chunk from smd and epics data to send to SmdNode
# Anatomy of a chunk (pf=packet_footer):
# [ [smd0][smd1][smd2][pf] ][ [epics0][epics1][epics2][pf] ][ pf ]
# ----- smd_chunk ------ ---------epics_chunk-------
# -------------------------- chunk ------------------------------
# Read new epics data as available in the queue
# then send only unseen portion of data to the evtbuilder rank.
if not smd_chunk: break
self.run.comms.smd_comm.Recv(rankreq, source=MPI.ANY_SOURCE)
# Check missing steps for the current client
missing_step_views = self.step_hist.get_buffer(rankreq[0])
# Update step buffers (after getting the missing steps
step_pf = PacketFooter(view=step_chunk)
step_views = step_pf.split_packets()
self.step_hist.extend_buffers(step_views, rankreq[0])
smd_extended = repack_for_eb(smd_chunk, missing_step_views,
self.run.configs)
self.run.comms.smd_comm.Send(smd_extended, dest=rankreq[0])
for i in range(self.run.comms.n_smd_nodes):
self.run.comms.smd_comm.Recv(rankreq, source=MPI.ANY_SOURCE)
self.run.comms.smd_comm.Send(bytearray(), dest=rankreq[0])
def steps(self):
current_step_pos = 0
""" Generates events between steps. """
smdr_man = SmdReaderManager(self.smd_dm.fds, self.max_events)
for i, (smd_chunk, step_chunk) in enumerate(smdr_man.chunks()):
# Update step stores
step_pf = PacketFooter(view=step_chunk)
step_views = step_pf.split_packets()
self.epics_store.update(step_views)
self.step_store.update(step_views)
eb_man = EventBuilderManager(smd_chunk, self.configs, \
batch_size=self.batch_size, filter_fn=self.filter_callback)
for i, step_dgram in enumerate(
self.step_store.dgrams(from_pos=current_step_pos + 1)):
if step_dgram:
limit_ts = step_dgram.seq.timestamp()
current_step_pos += 1
else:
limit_ts = -1
yield Step(self, eb_man=eb_man, limit_ts=limit_ts)
class Smd0(object):
""" Sends blocks of smds to smd_node
Identifies limit timestamp of the slowest detector then
sends all smds within that timestamp to an smd_node.
"""
def __init__(self, run):
self.smdr_man = SmdReaderManager(run.smd_dm.fds, run.max_events)
self.run = run
self.epics_man = UpdateManager(smd_size, self.run.epics_store.n_files)
self.run_mpi()
def run_mpi(self):
rankreq = np.empty(1, dtype='i')
for (smd_chunk, update_chunk) in self.smdr_man.chunks():
# Creates a chunk from smd and epics data to send to SmdNode
# Anatomy of a chunk (pf=packet_footer):
# [ [smd0][smd1][smd2][pf] ][ [epics0][epics1][epics2][pf] ][ pf ]
# ----- smd_chunk ------ ---------epics_chunk-------
# -------------------------- chunk ------------------------------
# Read new epics data as available in the queue
# then send only unseen portion of data to the evtbuilder rank.
update_pf = PacketFooter(view=update_chunk)
self.epics_man.extend_buffers(update_pf.split_packets())
smd_comm.Recv(rankreq, source=MPI.ANY_SOURCE)
epics_chunk = self.epics_man.get_buffer(rankreq[0])
pf = PacketFooter(2)
pf.set_size(0, memoryview(smd_chunk).shape[0])
pf.set_size(1, memoryview(epics_chunk).shape[0])
chunk = smd_chunk + epics_chunk + pf.footer
smd_comm.Send(chunk, dest=rankreq[0])
for i in range(PS_SMD_NODES):
smd_comm.Recv(rankreq, source=MPI.ANY_SOURCE)
smd_comm.Send(bytearray(), dest=rankreq[0])
def events(self):
ev_man = EventManager(self.configs, self.dm, \
filter_fn=self.filter_callback)
#get smd chunks
smdr_man = SmdReaderManager(self.smd_dm.fds, self.max_events)
for (smd_chunk, step_chunk) in smdr_man.chunks():
# Update epics_store for each chunk
step_pf = PacketFooter(view=step_chunk)
step_views = step_pf.split_packets()
self.epics_store.update(step_views)
eb_man = EventBuilderManager(smd_chunk,
self.configs,
batch_size=self.batch_size,
filter_fn=self.filter_callback)
for batch_dict in eb_man.batches():
batch, _ = batch_dict[
0] # there's only 1 dest_rank for serial run
for evt in ev_man.events(batch):
if evt._dgrams[0].seq.service() != 12: continue
yield evt
def smd_chunks(run):
smdr_man = SmdReaderManager(run)
for smd_chunk, update_chunk in smdr_man.chunks():
yield smd_chunk
import os, glob
from psana.psexp.smdreader_manager import SmdReaderManager
class Container(object):
pass
class Run(object):
def __init__(self):
filenames = glob.glob(
'/reg/neh/home/monarin/lcls2/psana/psana/tests/.tmp_smd0/.tmp/smalldata/*.xtc2'
)
fds = [os.open(f, os.O_RDONLY) for f in filenames]
self.smd_dm = Container()
setattr(self.smd_dm, 'fds', fds)
self.max_events = 1000
if __name__ == "__main__":
run = Run()
os.environ['PS_SMD_N_EVENTS'] = "1"
smdr_man = SmdReaderManager(run)
for chunk in smdr_man.chunks():
smd_chunk, step_chunk = chunk
print(
f'{memoryview(smd_chunk).nbytes} {memoryview(step_chunk).nbytes}')