Search found 4 matches
- 10 Dec 2018, 13:40
- Forum: Algorithms
- Topic: Infinite DMRG state prediction
- Replies: 2
- Views: 14012
Re: Infinite DMRG state prediction
Remark: A slightly different approach to this is discussed in https://arxiv.org/abs/1606.06790. The arrangement of the tensor network for the iDMRG is slightly different and instead of sweeping through system one chunks it and update "disconnected bonds" at one simulation step. This can be...
- 31 Aug 2018, 09:05
- Forum: Implementations
- Topic: Parallel iDMRG with mpi4py
- Replies: 6
- Views: 21216
Re: Parallel iDMRG with mpi4py
Hey Johannes, I dunno which version is better or of any direct comparisons :-). It could be interesting to do that, but I guess they converge equivalent. The Ueda approach reminds me on a block decimation approach like TEBD. This helps me to understand what is going on during the simulation better, ...
- 30 Aug 2018, 09:57
- Forum: Implementations
- Topic: Parallel iDMRG with mpi4py
- Replies: 6
- Views: 21216
Re: Parallel iDMRG with mpi4py
Hey Johannes, the approach by Ueda is separating the system into disconnecting parts, working on those in parallel and then updating the environments. The information flow is different in this approach since one does not sweep through the system in the sense of left-right sweeping. I guess this is v...
- 23 Aug 2018, 09:05
- Forum: Implementations
- Topic: Parallel iDMRG with mpi4py
- Replies: 6
- Views: 21216
Parallel iDMRG with mpi4py
Hey there, I am working on a Parallelization of iDMRG following https://arxiv.org/abs/1606.06790 which could be interesting for TeNPy running on a Cluster and, if it runs, I would like to add to the package. So far I implemented, quick and dirty, a running version of it using the multiprocessing mod...