Comp-phys-alps-users

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1244 discussions

dwa - bug?
by Mateusz Łącki 15 Sep '15

15 Sep '15

I would like to report something I thing is a bug. If i measure “MEASURE[Local Density]” for the “square lattice”, the result is (output of the “.y” field of the : [[ 0.99406836 1.00126848 0.99186967 ] [ 0.99634558 0.98947165 0.99828454 ] [ 0.98602864 0.99223814 0.98709175 ]] and 1.10723308538 +/- 0.000732833211551 1.09709344128 +/- 0.000725375608498 1.10916580731 +/- 0.000737136950109 1.09653825096 +/- 0.000711748290787 1.09386893991 +/- 0.000713199643571 1.09495623341 +/- 0.000711331680729 1.09890852882 +/- 0.000721818241453 1.09269699362 +/- 0.000716545982708 1.08871501476 +/- 0.000706327757539 if I compute it using MPI. I load the data using: data = pyalps.loadMeasurements(pyalps.getResultFiles(prefix=pfix)) and I am speaking about proper element of the list data[0] that of one for which s.props['observable']=='Local Density' Please neglect different results as they come from different parameters. Best, Mateusz Łącki

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complex number in DMRG calculations
by hamid mosadegh 08 Sep '15

08 Sep '15

Dear All, Is it possible to add imaginary term to Hamiltonian in DMRG calculations or evaluate the expectation value of a operator with imaginary part. Thanks -- H. Mosadeq Shahr-e-Kord University (SKU), Shahr-e-Kord , Iran

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Density-density correlator in Interaction expansion
by Swagata Acharya 29 Aug '15

29 Aug '15

Hi I am using interaction expansion to solve a lattice problem using DMFT. I want to find the dynamic density-density correlators as well. How can it be done within interaction expansion scheme. While the same can be done turning the corresponding flag on for hybridization-expansion scheme, and I have used it vigorously. Thnaks Swagata *........................................................................................................................................................................Swagata Acharya* Dept. of Physics and Meteorology IIT Kharagpur B C Roy Hall of Residence Room NW 204 Mob: +91 9836893829 +91 9088377636 Volunteer : Padakshep , Vivekananda Study Circle Secretary: Padakshep(www.padakshep.org) *................................................................................................................................*

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debugging alps
by Mateusz Łącki 26 Aug '15

26 Aug '15

Dear All, I would like to ask for some practical tips how to effectively debug alps applications: Is there a way how to build alps with debug flags switched on?. I would appreciate an ability to use a debugger such as gdb to debug the alps applications code. Does the debugging logic depend heavily on a particular alps application (meaning is debugging modifications of mps_optim moreless equivalent to debugging dwa code)? Can this debug mode be turned on using the cmake flags? Best, Mateusz Łącki

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Installing Alps Mps On Windows
by Henry Otobrise 24 Aug '15

24 Aug '15

Thanks for having me on the list. I am new to the Alps Project. I have installed the 32-bit Windows version of ALPS 2.3b and Vistrails using binary installer. However, I have a problem running applications using python scripts as the interpreter does not recognise the imported Alps packages, e.g. pyalps. What do I do to fix this? Secondly, how do I instal new packages, particularly Alps Mps, to an existing Alps installation in the absence of a binary installer? Kindly help. With best regards, Henry Otobrise. > > You can reach the person managing the list at > comp-phys-alps-users-owner(a)lists.phys.ethz.ch > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Comp-phys-alps-users digest..." > > > Today's Topics: > > 1. Re: mps_optim - segfault (Michele Dolfi) > 2. Re: mps_optim - segfault (Mateusz ??cki) > 3. Re: mps_optim - segfault (Michele Dolfi) > > > -----------------------------------------

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mps_optim - segfault
by Mateusz Łącki 24 Aug '15

24 Aug '15

Dear All, I wish to report a suboptimal behaviour in the mps_optim: setting the initial state with wrong L (L=10 and there are 12 spins defined) L=10; init_state="local_quantumnumbers" initial_local_S="0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5,0.5" initial_local_Sz="0.5,-0.5,0.5,0.5,-0.5,0.5,-0.5,-0.5,0.5,-0.5,0.5,0.5” produces a nasty segfault with no warning (in almost all other cases of setting something wrong a message explaining a nature of the problem is printed). This is not a bug, but a nuissance. Best, Mateusz Łącki

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The questions on alps project
by 郭怀明 18 Aug '15

18 Aug '15

Dear ~~~ Recently I prepare use DMRG to perform calculations. And I find alps a very useful tool, but I have the following questions about its use: 1, How to define the model. I search the webpage of alps and don't find the materials. I study a ladder with nearest neighbor and next nearest neighbor hoppings. How do I define the lattice and how do I give the parameters? 2, I will calculate the physical quantity as a function of a parameter. How to do this? 3, I want to calculate some physical quantities, such as the n(k) (particle distribution in the momentum space), the current on a bond. How do I do these calculations? Can I write the related programs based on alps? Thank you very much! Huaiming Beihang University, Beijing

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Re: [ALPS-users] Comp-phys-alps-users Digest, Vol 113, Issue 3
by Swagata Acharya 06 Aug '15

06 Aug '15

Hi Matthias Thanks for your reply. Would it be wise then to upgrade the OS of the machine to 14.04 (now it is only 12.04 Ubuntu) which will automatically ask for compiler repositories more updated ? In the case I would guess that the boost version for C/C++ would have to be something more updated to be compatible with the updated compilers (say boost_1_55_0 or beyond, which is now only boost_1_54_0)? My machine was however, a DellR730. Thanks Swagata On Thu, Aug 6, 2015 at 3:30 PM, < comp-phys-alps-users-request(a)lists.phys.ethz.ch> wrote: > Send Comp-phys-alps-users mailing list submissions to > comp-phys-alps-users(a)lists.phys.ethz.ch > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.phys.ethz.ch/listinfo/comp-phys-alps-users > or, via email, send a message with subject or body 'help' to > comp-phys-alps-users-request(a)lists.phys.ethz.ch > > You can reach the person managing the list at > comp-phys-alps-users-owner(a)lists.phys.ethz.ch > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Comp-phys-alps-users digest..." > > > Today's Topics: > > 1. Alps build problem (Swagata Acharya) > 2. Re: Alps build problem (Matthias Troyer) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 6 Aug 2015 02:54:11 +0530 > From: Swagata Acharya <acharya.swagata(a)gmail.com> > To: comp-phys-alps-users(a)lists.phys.ethz.ch > Subject: [ALPS-users] Alps build problem > Message-ID: > < > CAMx61za7AkTSPdSeDHUobMruSzJdYY2pyeQ9C4rA4pw4p3inAw(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi All > > I am installing ALPS on my Server with 64 bit processor arcitecture and the > version I using is alps-2.2.b3-r7462-src-with-boost.tar.gz > < > http://alps.comp-phys.org/static/software/releases/alps-2.2.b3-r7462-src-wi… > > > . And I am encountering this error each time I try installing it. The last > part of my error information is given below. Please suggest. > " > > > > > > > > > > > > > > > > > > *Linking CXX shared module mpi_c.so[ 39%] Built target mpi_cScanning > dependencies of target alps[ 39%] Building CXX object > src/alps/CMakeFiles/alps.dir/utility/encode.cpp.o[ 39%] Building CXX object > src/alps/CMakeFiles/alps.dir/utility/copyright.cpp.o[ 39%] Building CXX > object src/alps/CMakeFiles/alps.dir/utility/os.cpp.o[ 39%] Building CXX > object src/alps/CMakeFiles/alps.dir/utility/temporary_filename.cpp.o[ 40%] > Building CXX object src/alps/CMakeFiles/alps.dir/utility/vmusage.cpp.o[ > 40%] Building CXX object src/alps/CMakeFiles/alps.dir/alea/nan.C.o[ 40%] > Building CXX object src/alps/CMakeFiles/alps.dir/alea/observable.C.o[ 40%] > Building CXX object > > src/alps/CMakeFiles/alps.dir/alea/observablefactory.C.o..../tmp/ccE1HDpC.s:234080: > Error: no such instruction: `vfmadd312sd 56(%rbx),%xmm2,%xmm0'make[2]: *** > [src/alps/CMakeFiles/alps.dir/alea/observablefactory.C.o] Error 1make[1]: > *** [src/alps/CMakeFiles/alps.dir/all] Error 2make: *** [all] Error 2*" > > > For information, I have installed the same version on my other servers with > similar architecture. > > Suggestions would be of real help. > > Thanks > Swagata > > > > > -- > > > > > *........................................................................................................................................................................Swagata > Acharya* > Dept. of Physics and Meteorology > IIT Kharagpur > B C Roy Hall of Residence > Room NW 204 > Mob: +91 9836893829 > +91 9088377636 > > Volunteer : Padakshep , Vivekananda Study Circle > Secretary: Padakshep(www.padakshep.org) > > > *................................................................................................................................* >

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Alps build problem
by Swagata Acharya 06 Aug '15

06 Aug '15

Hi All I am installing ALPS on my Server with 64 bit processor arcitecture and the version I using is alps-2.2.b3-r7462-src-with-boost.tar.gz <http://alps.comp-phys.org/static/software/releases/alps-2.2.b3-r7462-src-wi…> . And I am encountering this error each time I try installing it. The last part of my error information is given below. Please suggest. " *Linking CXX shared module mpi_c.so[ 39%] Built target mpi_cScanning dependencies of target alps[ 39%] Building CXX object src/alps/CMakeFiles/alps.dir/utility/encode.cpp.o[ 39%] Building CXX object src/alps/CMakeFiles/alps.dir/utility/copyright.cpp.o[ 39%] Building CXX object src/alps/CMakeFiles/alps.dir/utility/os.cpp.o[ 39%] Building CXX object src/alps/CMakeFiles/alps.dir/utility/temporary_filename.cpp.o[ 40%] Building CXX object src/alps/CMakeFiles/alps.dir/utility/vmusage.cpp.o[ 40%] Building CXX object src/alps/CMakeFiles/alps.dir/alea/nan.C.o[ 40%] Building CXX object src/alps/CMakeFiles/alps.dir/alea/observable.C.o[ 40%] Building CXX object src/alps/CMakeFiles/alps.dir/alea/observablefactory.C.o..../tmp/ccE1HDpC.s:234080: Error: no such instruction: `vfmadd312sd 56(%rbx),%xmm2,%xmm0'make[2]: *** [src/alps/CMakeFiles/alps.dir/alea/observablefactory.C.o] Error 1make[1]: *** [src/alps/CMakeFiles/alps.dir/all] Error 2make: *** [all] Error 2*" For information, I have installed the same version on my other servers with similar architecture. Suggestions would be of real help. Thanks Swagata -- *........................................................................................................................................................................Swagata Acharya* Dept. of Physics and Meteorology IIT Kharagpur B C Roy Hall of Residence Room NW 204 Mob: +91 9836893829 +91 9088377636 Volunteer : Padakshep , Vivekananda Study Circle Secretary: Padakshep(www.padakshep.org) *................................................................................................................................*

2 1

alps-python
by noore.shaik＠epfl.ch 03 Aug '15

03 Aug '15

Hello, I am having some problem with importing the pyalps modules. I am not able to find the pyalps modules required. I am using ubuntu 14.04. For installing the ALPS, I followed the instructions on website and installed ALPS from the source. I did not face any problems with installation. In my CMakeCache.txt I found ALPS_BUILD_PYTHON:BOOL=ON which I guess should install the python modules. I have a directory pyalps in build_dir/lib/ however I did not find any pyalps.py which would load the python module upon the command "import pyalps". Please let me know where I could find the pyalps modules or any relevant changes in the installation procedure. Thank You very much for your help, With Best Regards, Noore Elahi Shaik.

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Comp-phys-alps-users