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| 1 | $Id: README,v 1.1 2007/11/16 13:32:56 kmura Exp $ |
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| 2 | ========================================================================== |
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| 3 | Geant4 MPI Interface |
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| 4 | |
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| 5 | Author: |
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| 6 | Koichi Murakami (KEK) / Koichi.Murakami@kek.jp |
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| 7 | ========================================================================== |
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| 8 | |
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| 9 | How to build |
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| 10 | ============ |
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| 11 | |
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| 12 | 1. Check "G4MPI.gmk" for yor MPI configuration: |
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| 13 | |
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| 14 | * Set "G4MPIROOT", which is the root path to your MPI library. |
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| 15 | * Redifine CXX as (wrapped) MPI C++ compiler. |
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| 16 | * Specify additional include paths and compiler flags to "CPPFLAGS". |
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| 17 | |
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| 18 | Sample makefiles for (LAM, MPICH2, OpenMPI) are also presented. |
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| 19 | An example of "G4MPI.gmk": |
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| 20 | |
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| 21 | # =========================================================== |
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| 22 | # Makefile for building G4MPI (LAM) |
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| 23 | # =========================================================== |
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| 24 | |
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| 25 | ifndef G4MPIROOT |
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| 26 | G4MPIROOT = /opt/lam |
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| 27 | endif |
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| 28 | |
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| 29 | # additional flags |
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| 30 | CXX := mpic++ |
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| 31 | CPPFLAGS += -I$(G4MPIROOT)/include |
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| 32 | |
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| 33 | |
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| 34 | 2. Build the library |
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| 35 | |
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| 36 | # make |
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| 37 | # make includes |
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| 38 | |
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| 39 | The library (libG4UImpi) will be created in $G4LIB, |
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| 40 | and header files will be installed into $G4INCLUDE. |
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| 41 | |
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