April 2012 - Comp-phys-alps-users

Inconsistent comment in generate_spline_matrix in the DMFT folder
by Kuangshing Chen 22 Jul '15

22 Jul '15

Hi, The function generate_spline_matrix in fouriertransform.C in the dmft folder shows the comments as follows: // A is the matrix whose inverse defines spline_matrix // // 6 6 // 1 4 1 // 1 4 1 // A = ... // // 1 4 1 // -2 0 0 2 However, the following codes, dense_matrix A = 4*dt/6.*boost::numeric::ublas::identity_matrix<double>(Np1); for (int i=1; i<Np1-1; i++) { A(i,i-1) = dt/6.; A(i,i+1) = dt/6.; } A(0,0) = 1.; A(0, Np1-1) = 1.; A(Np1-1, 0) = -2.*dt/6.; A(Np1-1, 1) = -1.*dt/6.; A(Np1-1, Np1-2) = 1*dt/6.; A(Np1-1, Np1-1) = 2*dt/6.; the red lines will make the matrix looks like // 6 6 // 1 4 1 // 1 4 1 // A = ... // // 1 4 1 // -2 *-1* *1* 2 Is the comment correct or the code correct? Any reference for this algorithm? Thank you, Kuang-Shing Chen

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ALPS 2.0.1 released
by Matthias Troyer 19 Sep '12

19 Sep '12

Dear ALPS users, ALPS 2.0.1 has been released. This is the version included with the ALPS paper: B. Bauer et al., J. Stat. Mech. (2011) P05001, which is available at : http://www.iop.org/EJ/abstract/1742-5468/2011/05/P05001 .Besides references to this paper, this release contains many minor bug fixes. The MacOS X 10.5 binary release will be uploaded shortly. The others are ready for download. Best regards Matthias Troyer

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quasi-momentum in spin chains
by Johannes Wilms 29 Apr '12

29 Apr '12

Hi all, I would like to use exact diagonalization to calculate the first few energy levels of a quantum spin chain, but as a function of quasi-momentum, i.e. the eigenvalue of the translation operator that shifts the lattice by one site. Is there any simple way to accomplish such a thing using ALPS? Thank you very much in advance, Johannes

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package alps-2.0.2-macosx-10.5.dmg
by Jianming Cai 27 Apr '12

27 Apr '12

Dear all, It seems that the package alps-2.0.2-macosx-10.5.dmg from the link http://alps.comp-phys.org/static/software/releases/alps-2.0.2-macosx-10.5.d… does not work. Its size is only about 37K. Best regards, Jianming

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Time-dependent correlation function
by Elliot Snow-Kropla 26 Apr '12

26 Apr '12

Hello all, I'm trying to simulate a spin glass using ALPS, and I'd like to look at the time-dependent correlation function. I can't seem to find a way to pull this out simply; is there some way to make one of the QMC codes produce this as output? Failing that, is there a way I can make one of the codes (e.g. dirloop_sse) output the state of the spins after a simulation so I can code it up myself using a temperature/imaginary time transformation? Thanks, -Elliot Snow-Kropla

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Hubbard model with double well
by Chen Ahai 26 Apr '12

26 Apr '12

Dear all I test a Hubbard model with external potential (double well) using DMRG code in ALPS, but I can not get a symmetry result (density distribution) with SWEEP and MAXSTATES up to 50 and 500, respectively. It seem that I need to set more SWEEPS and STATES in calculation. But it cast to much time and is not very practical. I found that the symmetry between spin-up and spin-down atoms is not kept in my present result, i.e. the density distributions of the two kinds of atoms are different ( I have set Sz as "CONSERVED_QUANTUMNUMBERS" and Sz_total=0 in command file). I wonder if there are some ways for me to restrict the Sz in each site to 0 and obtain the correct result with a few SWEEPS ? or may be I should use a better series of STATES ? Any comments are welcome. thank you. chenahai -- -------------------------------------------------------------------------- Chen Ahai Department of Physics, Zhejiang Normal University Jinhua, Zhejiang Province, 321004, China e-mail: chenahaiphysics(a)gmail.com; chenahai(a)yahoo.cn

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"-fPIC" error building ALPS on Lucid
by Itamar Kimchi 24 Apr '12

24 Apr '12

Hi, I'm trying to build alps 2.0 (current nightly snapshot, with boost) on Ubuntu Lucid. I got all the dependencies and ran cmake (version 2.8.0-5), pointing to the alps and boost directories. Then I ran make and got the following error: ... [ 26%] Building CXX object src/boost/CMakeFiles/boost.dir/root/alps2/alps-src/boost/libs/thread/src/pthread/once.cpp.o [ 26%] Building CXX object src/boost/CMakeFiles/boost.dir/root/alps2/alps-src/boost/libs/thread/src/pthread/thread.cpp.o Linking CXX shared library libboost.so /usr/bin/ld: /usr/local/lib/python2.7/config/libpython2.7.a(abstract.o): relocation R_X86_64_32 against `.rodata.str1.8' can not be used when making a shared object; recompile with -fPIC /usr/local/lib/python2.7/config/libpython2.7.a: could not read symbols: Bad value collect2: ld returned 1 exit status make[2]: *** [src/boost/libboost.so] Error 1 make[1]: *** [src/boost/CMakeFiles/boost.dir/all] Error 2 make: *** [all] Error 2 Do you know what this could be? Below I also attach the printout from the cmake command. Note I will not use MPI. Thanks, Itamar cmake printout: -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Build type: Release -- Python interpreter /usr/local/bin/python -- Python interpreter ok : version 2.7.2 -- PYTHON_INCLUDE_DIRS = /usr/local/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/local/lib/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/local/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/local/lib/python2.7/config/libpython2.7.a -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- ALPS version: 2.1.0d1 -- Looking for rpc/rpc.h -- Looking for rpc/rpc.h - found -- Looking for stdarg.h -- Looking for stdarg.h - found -- Looking for sys/stat.h -- Looking for sys/stat.h - found -- Looking for sys/systeminfo.h -- Looking for sys/systeminfo.h - not found -- Looking for sys/types.h -- Looking for sys/types.h - found -- Looking for unistd.h -- Looking for unistd.h - found -- Looking for windows.h -- Looking for windows.h - not found -- Looking for C++ include valarray -- Looking for C++ include valarray - found -- Looking for Boost Source -- Found Boost Source: /root/alps2/alps-src/boost -- Boost Version: 1_47_0 -- Could NOT find MPI (missing: MPI_LIBRARY MPI_INCLUDE_PATH) -- MPI compiler was MPI_COMPILER-NOTFOUND -- The Fortran compiler identification is GNU -- Check for working Fortran compiler: /usr/bin/gfortran -- Check for working Fortran compiler: /usr/bin/gfortran -- works -- Detecting Fortran compiler ABI info -- Detecting Fortran compiler ABI info - done -- Checking whether /usr/bin/gfortran supports Fortran 90 -- Checking whether /usr/bin/gfortran supports Fortran 90 -- yes Falling back to CMake provied LAPACK/BLAS detection. -- Looking for Fortran sgemm -- Looking for Fortran sgemm - found -- Looking for include files CMAKE_HAVE_PTHREAD_H -- Looking for include files CMAKE_HAVE_PTHREAD_H - found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE -- A library with BLAS API found. -- A library with BLAS API found. -- Looking for Fortran cheev -- Looking for Fortran cheev - found -- A library with LAPACK API found. -- Found SQLite Library: /usr/lib/libsqlite3.so -- Found FFTW: /usr/lib/libfftw3.so -- LPSolve Library: not found -- Found ZLIB: /usr/lib/libz.so -- Could NOT find SZIP (missing: SZIP_LIBRARIES SZIP_INCLUDE_DIRS) -- Found HDF5: debug;/usr/lib/libhdf5_hl.so;/usr/lib/libhdf5.so;/usr/lib/libpthread.so;/usr/lib/libz.so;/usr/lib/libm.so;optimized;/usr/lib/libhdf5_hl.so;/usr/lib/libhdf5.so;/usr/lib/libpthread.so;/usr/lib/libz.so;/usr/lib/libm.so -- HDF5 version found is 1.8.4 in /usr/include -- Python interpreter /usr/local/bin/python -- Python interpreter ok : version 2.7.2 -- PYTHON_INCLUDE_DIRS = /usr/local/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/local/lib/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/local/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/local/lib/python2.7/config/libpython2.7.a -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- Numpy include in /usr/local/lib/python2.7/site-packages/numpy/core/include -- ALPS XML dir is /opt/alps/lib/xml -- Adding Boost dir: /root/alps2/alps-src/boost -- HDF5 version found is 1.8.4 in /usr/include -- HDF5 version found is 1.8.4 in /usr/include -- tebd will not be built -- CTest cannot determine repository type. Please set UPDATE_TYPE to 'cvs' or 'svn'. CTest update will not work. -- Configuring done -- Generating done -- Build files have been written to: /root/alps2 root@birge-521-6:~/alps2# cd build root@birge-521-6:~/alps2/build# cmake -D Boost_ROOT_DIR:PATH=/root/alps2/alps-src/boost /root/alps2/alps-src/alps -- The C compiler identification is GNU -- The CXX compiler identification is GNU -- Check for working C compiler: /usr/bin/gcc -- Check for working C compiler: /usr/bin/gcc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Build type: Release -- Python interpreter /usr/local/bin/python -- Python interpreter ok : version 2.7.2 -- PYTHON_INCLUDE_DIRS = /usr/local/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/local/lib/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/local/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/local/lib/python2.7/config/libpython2.7.a -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- ALPS version: 2.1.0d1 -- Looking for rpc/rpc.h -- Looking for rpc/rpc.h - found -- Looking for stdarg.h -- Looking for stdarg.h - found -- Looking for sys/stat.h -- Looking for sys/stat.h - found -- Looking for sys/systeminfo.h -- Looking for sys/systeminfo.h - not found -- Looking for sys/types.h -- Looking for sys/types.h - found -- Looking for unistd.h -- Looking for unistd.h - found -- Looking for windows.h -- Looking for windows.h - not found -- Looking for C++ include valarray -- Looking for C++ include valarray - found -- Looking for Boost Source -- Found Boost Source: /root/alps2/alps-src/boost -- Boost Version: 1_47_0 -- Could NOT find MPI (missing: MPI_LIBRARY MPI_INCLUDE_PATH) -- MPI compiler was MPI_COMPILER-NOTFOUND -- The Fortran compiler identification is GNU -- Check for working Fortran compiler: /usr/bin/gfortran -- Check for working Fortran compiler: /usr/bin/gfortran -- works -- Detecting Fortran compiler ABI info -- Detecting Fortran compiler ABI info - done -- Checking whether /usr/bin/gfortran supports Fortran 90 -- Checking whether /usr/bin/gfortran supports Fortran 90 -- yes Falling back to CMake provied LAPACK/BLAS detection. -- Looking for Fortran sgemm -- Looking for Fortran sgemm - found -- Looking for include files CMAKE_HAVE_PTHREAD_H -- Looking for include files CMAKE_HAVE_PTHREAD_H - found -- Looking for pthread_create in pthreads -- Looking for pthread_create in pthreads - not found -- Looking for pthread_create in pthread -- Looking for pthread_create in pthread - found -- Found Threads: TRUE -- A library with BLAS API found. -- A library with BLAS API found. -- Looking for Fortran cheev -- Looking for Fortran cheev - found -- A library with LAPACK API found. -- Found SQLite Library: /usr/lib/libsqlite3.so -- Found FFTW: /usr/lib/libfftw3.so -- LPSolve Library: not found -- Found ZLIB: /usr/lib/libz.so -- Could NOT find SZIP (missing: SZIP_LIBRARIES SZIP_INCLUDE_DIRS) -- Found HDF5: debug;/usr/lib/libhdf5_hl.so;/usr/lib/libhdf5.so;/usr/lib/libpthread.so;/usr/lib/libz.so;/usr/lib/libm.so;optimized;/usr/lib/libhdf5_hl.so;/usr/lib/libhdf5.so;/usr/lib/libpthread.so;/usr/lib/libz.so;/usr/lib/libm.so -- HDF5 version found is 1.8.4 in /usr/include -- Python interpreter /usr/local/bin/python -- Python interpreter ok : version 2.7.2 -- PYTHON_INCLUDE_DIRS = /usr/local/include/python2.7 -- PYTHON_NUMPY_INCLUDE_DIR = /usr/local/lib/python2.7/site-packages/numpy/core/include -- PYTHON_SITE_PKG = /usr/local/lib/python2.7/site-packages -- PYTHON_LIBRARY = /usr/local/lib/python2.7/config/libpython2.7.a -- PYTHON_EXTRA_LIBS =-lpthread -ldl -lutil -- PYTHON_LINK_FOR_SHARED = -Xlinker -export-dynamic -- Numpy include in /usr/local/lib/python2.7/site-packages/numpy/core/include -- ALPS XML dir is /opt/alps/lib/xml -- Adding Boost dir: /root/alps2/alps-src/boost -- HDF5 version found is 1.8.4 in /usr/include -- HDF5 version found is 1.8.4 in /usr/include -- tebd will not be built -- CTest cannot determine repository type. Please set UPDATE_TYPE to 'cvs' or 'svn'. CTest update will not work. -- Configuring done -- Generating done -- Build files have been written to: /root/alps2/build

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Help ALPS
by konefvitbka53＠gmail.com 24 Apr '12

24 Apr '12

But am necessary change Hamiltonian parameters locally

1 0

Help ALPS
by konefvitbka53＠gmail.com 24 Apr '12

24 Apr '12

Hi all, how to make deviation from half filling?

2 1

Help ALPS
by konefvitbka53＠gmail.com 24 Apr '12

24 Apr '12

I want to know names of variables responsible vertex lattice and initial spin configuration.

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