Missing temporal ordering for temporal ordering conversion on resnet18 example

[cstutor888]

I tried to run the example, python main.py --workload inputs.examples.workloads.resnet18 --accelerator inputs.examples.hardware.eyeriss_like_simple, and got the following message:

2022-06-22 11:39:29,502 - classes.stages.MainInputParserStages.parse_workload_from_path +44 - INFO - Created workload graph with 28 nodes and 35 edges.
2022-06-22 11:39:29,503 - classes.stages.MainInputParserStages.parse_accelerator_from_path +16 - INFO - Parsed accelerator with cores [1].
2022-06-22 11:39:29,503 - classes.stages.SpatialMappingConversionStage.convert_user_spatial_mapping +98 - INFO - User-provided spatial mapping converted to: {'D1': ('K', 12.8), 'D2': ('C', 3.0)}
2022-06-22 11:39:29,504 - classes.stages.TemporalOrderingConversionStage.check_layer +41 - CRITICAL - Layer LayerNode_0 has no user-defined spatial mapping.
Traceback (most recent call last):
File "/home/nesong/Projects/zigzag-v2/main.py", line 29, in
mainstage.run()
File "/home/nesong/Projects/zigzag-v2/classes/stages/Stage.py", line 53, in run
for cme, extra_info in self.list_of_callables[0](self.list_of_callables[1:], **self.kwargs).run():
File "/home/nesong/Projects/zigzag-v2/classes/stages/MainInputParserStages.py", line 75, in run
for cme, extra_info in sub_stage.run():
File "/home/nesong/Projects/zigzag-v2/classes/stages/SaveStage.py", line 34, in run
for id, (cme, extra_info) in enumerate(substage.run()):
File "/home/nesong/Projects/zigzag-v2/classes/stages/WorkloadStage.py", line 25, in run
for cme, extra_info in sub_stage.run():
File "/home/nesong/Projects/zigzag-v2/classes/stages/SpatialMappingConversionStage.py", line 59, in run
sub_stage = self.list_of_callables[0](self.list_of_callables[1:], **kwargs)
File "/home/nesong/Projects/zigzag-v2/classes/stages/TemporalOrderingConversionStage.py", line 22, in init
self.check_layer(layer)
File "/home/nesong/Projects/zigzag-v2/classes/stages/TemporalOrderingConversionStage.py", line 42, in check_layer
raise ValueError("Missing temporal ordering for temporal ordering conversion")
ValueError: Missing temporal ordering for temporal ordering conversion

Could you please check it again?

[asyms]

Hi,

The reason you're getting this error, is because you have the TemporalOrderingConversionStage in your list of stages to be ran, but you haven't provided the Temporal loop order for all the resnet18 layers. The provided resnet18 workload doesn't include these temporal loop orders.

The easiest thing to do is comment out this TemporalOrderingConversionStage (L19 in main.py) and uncomment the LomaStage (L20 in main.py). That way, the LomaStage will automatically generate temporal mappings and do a cost model evaluation for each temporal mapping generated.

If you don't want the tool to save all of these cost model evaluations, you can insert a MinimalEnergyStage or MinimalLatencyStage right above the LomaStage. In this way, only the best cost model evaluation is saved and passed up the chain to the CompleteSaveStage (which saves the json).

I have also made the error message more detailed. I Hope this clears up the confusion?

KR,
Arne

[cstutor888]

Thanks, it works.