CGMES performance of importing CGM with subnetworks #3561
Description
Describe the current behavior
All tests on PowSyBl Core 6.8.1, JVM Xmx set to 20 GB (laptop having 32GB), Windows OS.
European CGM with 29 IGMs. Each IGM has EQ/TP/SV. Global pan-eu EQBD/TPBD/SV files.
Importing CGM as folder of zip, with subnetworks: 4'00
Importing manually all IGMs separately and then merging manually: 2'10
other tests:
Importing CGM as one zip, with subnetworks: 3'40
Importing CGM as folder of zip, without subnetworks: 1'30 (has the drawback of importing all IGMs as bus/breaker because at least one of the IGM is bus/breaker)
Describe the expected behavior
Importing CGM folder/zip with subnetwork should have similar performance compared to importing IGMs one by one and merging.
Also not sure about RAM usage, doesn't fit with 8GB.
Side note: importing CGM folder/zip could maybe have better performance if the (unique) SV is processed only once and not re-read for each IGM (nothing is in place today, pan-EU SV is entirely re-read for each IGM).
Describe the steps
No response
Environment
powsybl-core 6.8.1
windows 10
Relevant Log Output
No response
Extra Information
No response