Hi,
So, I’m simulating a triangular lattice t-J model with next-nearest neighboring interactions. I’m considering a 12x4 size. In the code, I’m just running the DMRG algorithm to calculate ground state energy and MPS.
Now, even when I increase the bond dimension to just 2000, the code fails with the error:
ERROR: LoadError: SystemError: close: No space left on device
Stacktrace:
[1] systemerror(::String, ::Int32; extrainfo::Nothing) at ./error.jl:168
[2] #systemerror#48 at ./error.jl:167 [inlined]
[3] systemerror at ./error.jl:167 [inlined]
[4] close at ./iostream.jl:63 [inlined]
[5] open(::Serialization.var"#1#2"{ITensor}, ::String, ::Vararg{String,N} where N; kwargs::Base.Iterators.Pairs{Union{},Union{},Tuple{},NamedTuple{(),Tuple{}}}) at ./io.jl:327
[6] open at ./io.jl:323 [inlined]
[7] serialize at /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.5/Serialization/src/Serialization.jl:747 [inlined]
[8] setindex! at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/SerializedElementArrays/cdFxy/src/SerializedElementArrays.jl:78 [inlined]
[9] _makeR!(::ITensors.DiskProjMPO, ::MPS, ::Int64) at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/abstractprojmpo.jl:185
[10] makeR! at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/diskprojmpo.jl:94 [inlined]
[11] position! at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/abstractprojmpo.jl:211 [inlined]
[12] macro expansion at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/dmrg.jl:208 [inlined]
[13] macro expansion at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/TimerOutputs/jgSVI/src/TimerOutput.jl:252 [inlined]
[14] macro expansion at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/dmrg.jl:207 [inlined]
[15] macro expansion at ./timing.jl:233 [inlined]
[16] dmrg(::ProjMPO, ::MPS, ::Sweeps; kwargs::Base.Iterators.Pairs{Symbol,Int64,Tuple{Symbol},NamedTuple{(:write_when_maxdim_exceeds,),Tuple{Int64}}}) at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/dmrg.jl:188
[17] #dmrg#913 at /home/kartikeya.arora.phy19.iitbhu/.julia/packages/ITensors/5sSxp/src/mps/dmrg.jl:47 [inlined]
[18] top-level scope at /home/kartikeya.arora.phy19.iitbhu/Donna/t1t2J1J2.jl:113
[19] include(::Function, ::Module, ::String) at ./Base.jl:380
[20] include(::Module, ::String) at ./Base.jl:368
[21] exec_options(::Base.JLOptions) at ./client.jl:296
[22] _start() at ./client.jl:506
in expression starting at /home/kartikeya.arora.phy19.iitbhu/Donna/t1t2J1J2.jl:113
Now, I’m running only one job per node and also using write_when_maxdim_exceeds =1000
, but still I get the same error and the job fails.
Since, I’m running this on a supercomputer, this shouldn’t happen as my own PC could handle bond dimensions upto 2000.
Please help me out. It’s very important and urgent!
Best
Kartikeya