Dear Michelle,

Could you send me the whole python script you are trying to run with loop?

Synge

On May 13, 2020, at 5:39, Michelle zylx4521@gmail.com wrote:

Hello,

I am running ALPS 2.3.0 on Windows 10 using conda 4.8.3 python 2.7.15 boost 1.64.0 hdf5 1.8.18

When I attempt to run the loop simulation it starts the scheduler and initializes:

ALPS/looper version 3.2b12-20100128 (2010/01/28) multi-cluster quantum Monte Carlo algorithms for spin systems available from http://wistaria.comp-phys.org/alps-looper/ copyright (c) 1997-2010 by Synge Todo wistaria@comp-phys.org

using ALPS/parapack scheduler a Monte Carlo scheduler for multiple-level parallelization copyright (c) 1997-2016 by Synge Todo wistaria@comp-phys.org

based on the ALPS libraries version 2.3.0 available from http://alps.comp-phys.org/ copyright (c) 1994-2016 by the ALPS collaboration. Consult the web page for license details. For details see the publication: B. Bauer et al., J. Stat. Mech. (2011) P05001.

[2020-May-12 08:41:47]: starting scheduler on unnamed master input file = [...]\parm2c.in.xml master output file = [...]\parm2c.out.xml termination file = [disabled] total number of thread(s) = 1 thread(s) per clone = 1 number of thread group(s) = 1 auto evaluation = yes time limit = unlimited interval between checkpointing = 3600 seconds interval between progress report = 600 seconds interval between vmusage report = infinity task range = all worker dump format = hdf5 worker dump policy = running workers only [2020-May-12 08:41:47]: task status: total number of tasks = 15 new = 15, running = 0, continuing = 0, suspended = 0, finished = 0, completed = 0, skipped = 0 [2020-May-12 08:41:47]: starting 1 threadgroup(s) [2020-May-12 08:41:47]: dispatching a new clone[1,1] on threadgroup[1]

but stops here without any error or warning, leaving behind a parm2c.out.xml.lck file. Additionally, pyalps.runApplication returns the value -1073740777.

For completeness, the parameters are defined as: for t in [0.05, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.25, 1.5, 1.75, 2.0]: parms.append( { 'LATTICE':"chain lattice", 'MODEL':"spin", 'local_S':0.5, 'L':60, 'J':1, 'THERMALIZATION':15000, 'SWEEPS':150000, 'ALGORITHM':"loop", 'T':t } )

I’ve also tried running this using Miniconda2 with python 2.7.16 boost 1.65.1 hdf5 1.10.1 with and without setting the environment variable HDF5_USE_FILE_LOCKING to FALSE, with no change in behaviour. I don’t encounter this issue with the spinmc, dirloop_sse, worm, qwl, sparsediag, or dmrg applications. However running dwa, following the DWA-01 tutorial, the simulation initializes and starts on task 1 but eventually crashes without warning/error and returns the same value (no .lck file left behind, might be a different issue).

Has anyone else encountered this issue and/or have ideas about it? Thanks in advance!

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