I am performing a DMRG calculation for finite size cluster with OBC. I have finished various calculations using OpenMP and setting an approximate RAM requirement on my institute’s cluster. However, now I had to move to a different cluster and I am noticing the amount of RAM required there is much …

To be honest, I’m not sure. I definitely can’t comment on why your older cluster may behave different from your newer one, because that could be a hardware issue or a Julia issue (including differences between Julia) versions, and it might not have much to do with ITensor specifically. Do you have a…

Hi, I have been having similar problems more broadly with Julia and slurm for quite a while. I have found this thread only recently Garbage collection not aggressive enough on Slurm Cluster - Julia at Scale - Julia Programming Language . From what I understand it can happen that the julia process i…

Glad that you found that post in the Julia Discourse. That would be the better place to ask questions about this subject (in the sense of getting more informative answers), since it’s more of a pure Julia issue rather than an ITensor one. That being said, over the next year or so we are planning to…

We’ve gotten reports about that same issue from @ryanlevy when using ITensors.jl with Julia 1.9.2 (it seems to not be an issue in Julia 1.8 and 1.10). Interesting to see that there are similar reports from other users not using ITensors.jl, so I believe this is not an ITensor-specific issue and repo…

Large amount of memory used, when dmrg runs on cluster

ITensor Julia Questions

mtfishman August 18, 2023, 1:35pm 6

See the nice post by @ryanlevy here: Memory usage in DMRG with Julia 1.x.

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Large amount of memory used, when dmrg runs on cluster

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