The default is_cpu_op value causes the COMM node to be skipped by the Workload layer.

[zbceric]

I converted ASTRA-sim 1.0 text input files Resnet50_DataParallel.txt into Chakra traces. However, I observed that the COMM node was skipped by the workload layer of ASTRA-sim. This means that ASTRA-sim only output the time consumed by computation, without considering communication.

This issue was caused by the text converter not setting the is_cpu_op attribute of the COMM node to false. The default value of true causes the workload to skip the node, leading to the anomaly as shown in the following code (Workload.cc):

else if (
        node->is_cpu_op() ||
        (!node->is_cpu_op() && node->type() == ChakraNodeType::COMP_NODE)) {
      if ((node->runtime() == 0) && (node->num_ops() == 0)) {
        skip_invalid(node);
      }

[srinivas212]

@JoongunPark do you know anyone supporting text converter?

[srinivas212]

@zbceric if you post a PR we can review / accept. Thanks!

[JoongunPark]

Sorry for late notice the tag. The problem stems from default value (true) for is_cpu_op.
The above PR will solve the problem.