Caliper How To

Scratch pad for Caliper + Thicket/Hatchet notes.

General Caliper Services

Runtime Report

CALI_CONFIG=runtime-report

Event Tracing

CALI_CONFIG=event-trace

Sample Based Profiling

CALI_CONFIG=sample-report

GPU Caliper Services

https://software.llnl.gov/Caliper/GPUProfiling.html

(TODO: list most useful config/services)

(TODO: CUDA and ROCm Build constraints)

MPI Caliper Services

https://software.llnl.gov/Caliper/MPIProfiling.html

Overall MPI Report

CALI_CONFIG=mpi-report

Profile MPI calls inside of Caliper annotated regions

CALI_CONFIG=runtime-report,profile.mpi 

(TODO: Are there MPI build constraints?)

Ascent Caliper Integration Tasks

Allow ascent_options.yaml entries to control caliper services.

We support options for Caliper config, services, and output_file:

https://github.com/Alpine-DAV/ascent/blob/207d6fb7cc57352640abff9f0aee77b70842821b/src/libs/ascent/utils/ascent_annotations.cpp#L76