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Revision: 1465
Committed: Fri Jul 9 23:08:25 2010 UTC (14 years, 10 months ago) by chuckv
File size: 3145 byte(s)
Log Message:
Creating busticated version of OpenMD

File Contents

# User Rev Content
1 gezelter 1394 What is OpenMD?
2 gezelter 2
3 gezelter 1390 OpenMD is an open source molecular dynamics engine which is capable of
4     efficiently simulating liquids, proteins, nanoparticles, interfaces,
5     and other complex systems using atom types with orientational degrees
6     of freedom (e.g. "sticky" atoms, point dipoles, and coarse-grained
7     assemblies). Proteins, zeolites, lipids, transition metals (bulk, flat
8     interfaces, and nanoparticles) have all been simulated using force
9     fields included with the code. OpenMD works on parallel computers
10     using the Message Passing Interface (MPI), and comes with a number of
11     analysis and utility programs that are easy to use and modify. An
12     OpenMD simulation is specified using a very simple meta-data language
13     that is easy to learn.
14 gezelter 2
15 gezelter 1390 Simulations are started in OpenMD using a single Molecular Dynamics (.md)
16     file. These files must start with the <OpenMD> tag and must
17 gezelter 1055 have two sections:
18 gezelter 2
19 gezelter 1055 1) a C-based <MetaData> section, and
20 gezelter 2
21 gezelter 1055 2) a <Snapshot> block for initial coordinate and velocity information.
22 gezelter 2
23 gezelter 1055 Detailed descriptions of the structures of these files are
24 gezelter 2 available in the "doc" directory. Sample simulations are
25     available in the "samples" directory.
26    
27 gezelter 1390 What you need to compile and use OpenMD:
28 gezelter 2
29 gezelter 1390 1) Good C, C++ and Fortran95 compilers. We've built and tested OpenMD
30 gezelter 2 on the following architecture & compiler combinations:
31    
32 gezelter 1055 Architecture CC CXX F90 Notes
33     ------------------------- ---- ----- ----- ----------------------
34 gezelter 1390 ix86-pc-linux-gnu icc icpc ifort (Intel v. 10)
35     i686-apple-darwin10.0.0 gcc g++ gfortran (GNU v.4.3)
36     i686-apple-darwin10.0.0 icc icpc ifort (Intel v. 11)
37     x86_64-unknown-linux-gnu gcc g++ pathf95 (Pathscale 3.2)
38    
39     OpenMD uses features of the Fortran 95 language. The fortran
40 gezelter 873 portions of our code will not compile if your compiler does not
41     support these particular features. Some (but not all) Fortran 90
42 gezelter 1390 compilers do support these features.
43 gezelter 2
44 gezelter 1390 Compilers that are known to fail on OpenMD: g77, older versions of
45     gfortran, older Portland Group compilers (pgf77, pgf90).
46 gezelter 873
47 gezelter 1390 Compilers that are known to work on OpenMD: Intel's ifort,
48     Pathscale's pathf95, IBM's xlf95, Portland-F¢s pgf95 (version 6 or-A
49 gezelter 873 higher), Sun's f95. There may be others that work also.
50    
51 gezelter 511 2) GNU make (also known as gmake). Regular make won't work.
52     Really. We've tried. Don't bother with regular make.
53     Seriously. You need GNU make. Did we mention that you
54     need GNU make?
55 gezelter 2
56 gezelter 508 3) Perl. Compilation dependencies in Fortran95 are somewhat
57     complicated, so the build process uses a perl script called
58 gezelter 511 filepp to do this job. You need perl for filepp, so you
59 gezelter 1390 need perl to build OpenMD.
60 gezelter 508
61 gezelter 1390 4) MPI-2 is optional for the single processor version of OpenMD, but
62     is required if you want OpenMD to run in parallel. We like
63     OpenMPI. Other implementations of MPI-2 might work, but we haven-F¢t-A
64     tried. You can get Open MPI here: http://www.open-mpi.org/
65 gezelter 508
66 gezelter 2 INSTRUCTIONS
67    
68     1) Get, build, and test the required pieces above.
69 gezelter 1390 2) ./configure
70 gezelter 2 3) make
71     4) make install
72    
73 gezelter 508 That's it.