July 2016 - Comp-phys-alps-users

Inconsistent results in different ALPS installs
by Johannes Reim 25 Jul '16

25 Jul '16

Dear all, we used ALPS to determine the energy of a linear AF spin chain with DM on two different computer, both running Linux, which required us to build ALPS with the provided scripts. We have used the same parameter and model used, and compared the methods exact diagonalization and DMRG. While the diagonalization results are the same up to at least the 10th digit, the DMRG result on one computer differs from all others by about 0.3%. My question is, whether there exists an option to check the validity of the ALPS installation and which results are reliable. Thank you very much and best wishes, Johannes

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question
by Hocine Ahmed 25 Jul '16

25 Jul '16

HelloI tray to stady the extended Bose Hubbard model,by changing the interaction potential between the atoms.How can I do this...?Best regardsHocine --------

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problem compiling alps-2.2.b4
by Tadeusz Wasiutyński 25 Jul '16

25 Jul '16

In the past I had no problems with compiling alps from source. Recently I tried to compile it on Fedora 24 and failed. I noticed that the source does not like boost 1.6 from Fedora, used native 1.58 from alps. Cmake result looks good but make fails: cmake -D Boost_ROOT_DIR:PATH=~/alps-2.2.b4-src-with-boost/boost/ -DCMAKE_INSTALL_PREFIX=$HOME/ALPS/ LPSolve_LIBRARY=/usr/lib64/liblpsolve55.so -D LPSolve_INCLUDE_DIR=/usr/include/lpsolve/ -D HDF5_LIBRARIES=/usr/lib64/libhdf5.so -D HDF5_INCLUDE_DIR=/usr/include/ ~/alps-2.2.b4-src-with-boost/alps/ -- Compiler version: c++ (GCC) 6.1.1 20160621 (Red Hat 6.1.1-3) -- Build type: Release -- Python interpreter /usr/bin/python -- Python interpreter ok : version 2.7.12 -- PYTHON_INCLUDE_DIRS = /usr/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/lib64/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/lib64/python2.7/config/libpython2.7.so -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- ALPS version: 2.2.b4 -- Looking for Boost Source -- Found Boost Source: /home/tadeusz/alps-2.2.b4-src-with-boost/boost -- Boost Version: 1_58_0 -- Adding Boost dir: /home/tadeusz/alps-2.2.b4-src-with-boost/boost -- Could NOT find MPI_C (missing: MPI_C_LIBRARIES MPI_C_INCLUDE_PATH) -- Could NOT find MPI_CXX (missing: MPI_CXX_LIBRARIES MPI_CXX_INCLUDE_PATH) -- MPI compiler was -- Falling back to CMake provied LAPACK/BLAS detection. -- A library with BLAS API found. -- A library with BLAS API found. -- A library with LAPACK API found. -- Could NOT find SZIP (missing: SZIP_LIBRARIES SZIP_INCLUDE_DIRS) -- Python interpreter /usr/bin/python -- Python interpreter ok : version 2.7.12 -- PYTHON_INCLUDE_DIRS = /usr/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/lib64/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/lib64/python2.7/config/libpython2.7.so -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- Numpy include in /usr/lib64/python2.7/site-packages/numpy/core/include -- ALPS XML dir is /home/tadeusz/ALPS/lib/xml -- MPS: enabling NU1 symmetry. -- tebd will not be built -- Configuring done -- Generating done -- Build files have been written to: /home/tadeusz/build make result: [ 65%] Building CXX object applications/dmrg/dmrg/CMakeFiles/dmrg.dir/dmrg.C.o In file included from /usr/include/python2.7/pyconfig.h:6:0, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/python/detail/wrap_python.hpp:50, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/python/detail/prefix.hpp:13, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/python/args.hpp:8, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/python.hpp:11, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/alea/mcdata.hpp:79, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/alea.h:34, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/alea/observableset.h:49, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler/montecarlo.h:40, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler.h:31, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/applications/dmrg/dmrg/dmrg.C:31: /usr/include/python2.7/pyconfig-64.h:1202:0: warning: "_POSIX_C_SOURCE" redefined #define _POSIX_C_SOURCE 200112L --------------------------------------------- In file included from /usr/include/c++/6.1.1/memory:81:0, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/smart_ptr/scoped_ptr.hpp:21, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/scoped_ptr.hpp:14, from /home/tadeusz/alps-2.2.b4-src-with-boost/boost/boost/smart_ptr.hpp:19, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/osiris/dump.h:38, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler/info.h:38, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler/worker.h:35, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler/task.h:41, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/src/alps/scheduler/factory.h:34, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/applications/dmrg/dmrg/factory.h:31, from /home/tadeusz/alps-2.2.b4-src-with-boost/alps/applications/dmrg/dmrg/factory.C:30: /usr/include/c++/6.1.1/bits/unique_ptr.h:49:28: note: declared here template<typename> class auto_ptr; ^~~~~~~~ applications/dmrg/dmrg/CMakeFiles/dmrg.dir/build.make:86: for 'applications/dmrg/dmrg/CMakeFiles/dmrg.dir/factory.C.o' failed make[2]: *** [applications/dmrg/dmrg/CMakeFiles/dmrg.dir/factory.C.o] error 1 CMakeFiles/Makefile2:6096: polecenia dla obiektu 'applications/dmrg/dmrg/CMakeFiles/dmrg.dir/all' failed make[1]: *** [applications/dmrg/dmrg/CMakeFiles/dmrg.dir/all] error 2 Makefile:160: polecenia dla obiektu 'all' failed make: *** [all] error 2 Any suggestions? Regards -- Tadeusz Wasiutyński

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spinmc and dmrg - command not found
by Robertson Esperanza 24 Jul '16

24 Jul '16

Hello, I tried running the tutorials provided and I have similar problems as with this post: https://lists.phys.ethz.ch/pipermail/comp-phys-alps-users/2013/002160.html but I did not know how it was resolved in the end of the thread. one instance shows: dmrg parm_spin_one_half.in.xml --write-xml /bin/sh: dmrg: command not found and the other shows: spinmc parm1.in.xml --Tmin 5 --write-xml /bin/sh: spinmc: command not found Thank you for your continued assistance. Regards, Robert Esperanza

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twist boundary conditions
by Chia-Chen Chang 14 Jul '16

14 Jul '16

Dear All, According to ALPS' documentations, periodic and open boundary conditions are supported by default. I am wondering if there is a way of implementing twist boundary conditions in the model/lattice XML inputs? Thank you for your time and help. Chia-Chen ====================== Chia-Chen Chang cxc639(a)gmail.com

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initial_local_QN for 'Kagome lattice' of mps_evolve
by xiaofanlaohu 04 Jul '16

04 Jul '16

Dear Michele Dolfi, For mps_evolve, how to set the initial_local_QN, if the unitcell has two vertex or more vertex, such as 'Kagome lattice' I appreciate your help. Thank you very much. Best regard, Xiaofan Zhou Shanxi University of China 2016-07-04 xiaofanlaohu

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Build error for alps-2.2.b4 on ubuntu 16.04
by pradeep thakur 01 Jul '16

01 Jul '16

Dear All, I'm attempting to build alps on an ubuntu 16.04 machine (xubuntu 16.04 LTS). I downloaded the package "alps-2.2.b4-src.tar.gz" and after installing all the dependencies, executed the following commands in the build folder: $sudo cmake Boost_ROOT_DIR:PATH=/usr/include/boost /home/user/alps-2.2.b4-src/alps $sudo make The last 12 lines of the output are given below. - - - [ 83%] Built target vector_functions [ 84%] Built target matrix_ublas_sparse_functions [ 85%] Built target vector_valarray_conversion [ 85%] Linking CXX executable real_tests CMakeFiles/real_tests.dir/real_tests.C.o: file not recognized: File truncated collect2: error: ld returned 1 exit status test/numeric/CMakeFiles/real_tests.dir/build.make:129: recipe for target 'test/numeric/real_tests' failed make[2]: *** [test/numeric/real_tests] Error 1 CMakeFiles/Makefile2:10185: recipe for target 'test/numeric/CMakeFiles/real_tests.dir/all' failed make[1]: *** [test/numeric/CMakeFiles/real_tests.dir/all] Error 2 Makefile:160: recipe for target 'all' failed make: *** [all] Error 2 - - - Thanks in advance for any help. regards, Pradeep Thakur, Dept. of Physics, Savitribai Phule Pune University, Pune, India.

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