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Extractor and Injector async models fixed (#881)
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* Fixes to injector and extractor async models

Signed-off-by: bamsumit <[email protected]>

* Deletd redundant time increase

Signed-off-by: bamsumit <[email protected]>

---------

Signed-off-by: bamsumit <[email protected]>
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bamsumit authored Aug 8, 2024
1 parent d22e829 commit efbe872
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Showing 2 changed files with 9 additions and 12 deletions.
9 changes: 3 additions & 6 deletions src/lava/proc/io/extractor.py
Original file line number Diff line number Diff line change
Expand Up @@ -130,25 +130,22 @@ def run_spk(self) -> None:
@requires(CPU)
class PyLoihiExtractorModelAsync(PyAsyncProcessModel):
in_port: PyInPort = LavaPyType(PyInPort.VEC_DENSE, float)
out_port: PyOutPort = LavaPyType(PyOutPort.VEC_DENSE, float)

def __init__(self, proc_params: dict) -> None:
super().__init__(proc_params=proc_params)

channel_config = self.proc_params["channel_config"]
self._pm_to_p_src_port = self.proc_params["pm_to_p_src_port"]
self._pm_to_p_src_port.start()

self._send = channel_config.get_send_full_function()
self.time_step = 1

def run_async(self) -> None:
while self.time_step != self.num_steps + 1:
self._send(self._pm_to_p_src_port, self.in_port.recv())
self._send(self.out_port.csp_ports[-1],
self.in_port.recv())
self.time_step += 1

def __del__(self) -> None:
self._pm_to_p_src_port.join()


class VarWire(AbstractProcess):
"""VarWire allows non-Lava code, such as a third-party Python library
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12 changes: 6 additions & 6 deletions src/lava/proc/io/injector.py
Original file line number Diff line number Diff line change
Expand Up @@ -46,6 +46,7 @@ class Injector(AbstractProcess):
buffer is full and how the dst_port behaves when the buffer is empty
and not empty.
"""

def __init__(self,
shape: ty.Tuple[int, ...],
buffer_size: ty.Optional[int] = 50,
Expand Down Expand Up @@ -133,16 +134,14 @@ def __del__(self) -> None:
@requires(CPU)
class PyLoihiInjectorModelAsync(PyAsyncProcessModel):
"""PyAsyncProcessModel for the Injector Process."""
in_port: PyInPort = LavaPyType(PyInPort.VEC_DENSE, float)
out_port: PyOutPort = LavaPyType(PyOutPort.VEC_DENSE, float)

def __init__(self, proc_params: dict) -> None:
super().__init__(proc_params=proc_params)

shape = self.proc_params["shape"]
channel_config = self.proc_params["channel_config"]
self._p_to_pm_dst_port = self.proc_params["p_to_pm_dst_port"]
self._p_to_pm_dst_port.start()

self._zeros = np.zeros(shape)

self._receive_when_empty = channel_config.get_receive_empty_function()
Expand All @@ -153,17 +152,18 @@ def __init__(self, proc_params: dict) -> None:
def run_async(self) -> None:
while self.time_step != self.num_steps + 1:
self._zeros.fill(0)
elements_in_buffer = self._p_to_pm_dst_port._queue.qsize()
elements_in_buffer = self.in_port.csp_ports[-1]._queue.qsize()

if elements_in_buffer == 0:
data = self._receive_when_empty(
self._p_to_pm_dst_port,
self.in_port,
self._zeros)
else:
data = self._receive_when_not_empty(
self._p_to_pm_dst_port,
self.in_port,
self._zeros,
elements_in_buffer)

self.out_port.send(data)
self.time_step += 1

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