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| == VASP binaries ==
| | #REDIRECT [[HPC/Applications/vasp]] |
| The vasp5 modules as of version vasp5/5.2.12a-mkl-4 contain several binaries, determined by preprocessor flags in the Makefile as shown.
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| To inspect the available binaries:
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| ls $VASP5_HOME/bin
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| === Available binaries and their flags ===
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| <!--
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| sed -n '/DMPI_BLOCK/s/.*8000//p' embody-5.2.12a-mkl-4/build.log | uniq
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| -->
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| {| class="wikitable" cellpadding="5" style="text-align:left;"
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| |- style="background:#eee; text-align:center;"
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| ! Binary name !! Flags used
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| |-
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| | vasp || <code>(none)</code>
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| |-</code>
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| | vasp-chargehalf || <code>-DNGZhalf</code>
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| |-</code>
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| | vasp-gamma || <code>-DwNGZhalf</code>
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| |-</code>
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| | vasp-gamma-chargehalf || <code>-DwNGZhalf -DNGZhalf</code>
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| |-</code>
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| | vasp-tbdyn || <code>-Dtbdyn</code>
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| |-</code>
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| | vasp-tbdyn-chargehalf || <code>-DNGZhalf -Dtbdyn</code>
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| |-</code>
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| | vasp-tbdyn-gamma || <code>-DwNGZhalf -Dtbdyn</code>
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| |-</code>
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| | vasp-tbdyn-gamma-chargehalf || <code>-DwNGZhalf -DNGZhalf -Dtbdyn</code>
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| |}
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| === Common flags ===
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| -DIFC -DRPROMU_DGEMV -DRACCMU_DGEMV -DCACHE_SIZE=16000 -DMPI -DMPI_BLOCK=8000
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| === Explanantion of flags ===
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| From <code>vasp.5.2/makefile.linux_pg</code>
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| <pre>
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| #-----------------------------------------------------------------------
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| # possible options for CPP:
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| # NGXhalf charge density reduced in X direction
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| # wNGXhalf gamma point only reduced in X direction
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| # avoidalloc avoid ALLOCATE if possible
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| # IFC work around some IFC bugs
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| # CACHE_SIZE 1000 for PII,PIII, 5000 for Athlon, 8000 P4
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| # RPROMU_DGEMV use DGEMV instead of DGEMM in RPRO (usually faster)
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| # RACCMU_DGEMV use DGEMV instead of DGEMM in RACC (faster on P4)
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| # **** definitely use -DRACCMU_DGEMV if you use the mkl library
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| #-----------------------------------------------------------------------
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| …
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| #-----------------------------------------------------------------------
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| # additional options for CPP in parallel version (see also above):
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| # NGZhalf charge density reduced in Z direction
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| # wNGZhalf gamma point only reduced in Z direction
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| # scaLAPACK use scaLAPACK (usually slower on 100 Mbit Net)
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| #-----------------------------------------------------------------------
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| </pre>
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| == vdW-DF functional ==
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| All binaries support the use of the [http://cms.mpi.univie.ac.at/vasp/vasp/vdW_DF_functional_Langreth_Lundqvist_et_al.html vdW-DF functional of Langreth and Lundqvist et al.]
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| No specific preparations are needed other than setting the INCAR flags as documented. The binaries will find the required precalculated kernel file <code>vdw_kernel.bindat</code> by means of the environment variable <code>$VASP5_HOME</code> which is set by the module. This is a Carbon-specific extension.
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