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Doc changes to overview, build and prereqs

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Salvatore Filippone
2021-03-11 18:26:32 +01:00
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@@ -3,14 +3,14 @@
<html >
<head><title>Prerequisites</title>
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<!--l. 28--><div class="crosslinks"><p class="noindent"><span
<!--l. 30--><div class="crosslinks"><p class="noindent"><span
class="cmr-12">[</span><a
href="userhtmlsu2.html" ><span
class="cmr-12">next</span></a><span
@@ -25,7 +25,7 @@ class="cmr-12">] </span></p></div>
class="cmr-12">3.1 </span></span> <a
id="x8-70003.1"></a><span
class="cmr-12">Prerequisites</span></h4>
<!--l. 30--><p class="noindent" ><span
<!--l. 32--><p class="noindent" ><span
class="cmr-12">The following base libraries are needed:</span>
@@ -62,28 +62,28 @@ class="cmr-12">) are meant to define the standard behaviour of</span>
<span
class="cmr-12">the BLAS interface, so they are not optimized for any particular platform,</span>
<span
class="cmr-12">and should only be used as a last resort. Note that BLAS computations</span>
class="cmr-12">and should only be used as a last resort. Note that BLAS computations form</span>
<span
class="cmr-12">form a relatively small part of the AMG4PSBLAS/PSBLAS computations;</span>
class="cmr-12">a relatively small part of the AMG4PSBLAS/PSBLAS; however they are</span>
<span
class="cmr-12">they are however critical when using preconditioners based on MUMPS,</span>
class="cmr-12">critical when using preconditioners based on the MUMPS, UMFPACK or</span>
<span
class="cmr-12">UMFPACK or SuperLU third party libraries. Note that UMFPACK requires</span>
class="cmr-12">SuperLU third party libraries. UMFPACK requires a full LAPACK library;</span>
<span
class="cmr-12">a full LAPACK library; our experience is that configuring ATLAS for</span>
class="cmr-12">our experience is that configuring ATLAS for building full LAPACK does</span>
<span
class="cmr-12">building full LAPACK does not work in the correct way. Our advice is first</span>
class="cmr-12">not always work in the expected way. Our advice is first to download the</span>
<span
class="cmr-12">to download the LAPACK tarfile from </span><a
class="cmr-12">LAPACK tarfile from </span><a
href="http://www.netlib.org/lapack" ><span
class="cmr-12">www.netlib.org/lapack</span></a> <span
class="cmr-12">and install it</span>
class="cmr-12">and install it independently of</span>
<span
class="cmr-12">independently of ATLAS. In this case, you need to modify the OPTS and</span>
class="cmr-12">ATLAS. In this case, you need to modify the OPTS and NOOPT definitions</span>
<span
class="cmr-12">NOOPT definitions for including -fPIC compilation option in the make.inc</span>
class="cmr-12">for including -fPIC compilation option in the make.inc file of the LAPACK</span>
<span
class="cmr-12">file of the LAPACK library.</span>
class="cmr-12">library.</span>
</dd><dt class="description">
<span
class="cmbx-12">MPI</span> </dt><dd
@@ -118,16 +118,16 @@ class="cmr-12">psctoolkit.github.io/ products/psblas/</span></a><span
class="cmr-12">; version 3.7.0 (or later) is required.</span>
<span
class="cmr-12">Indeed, all the prerequisites listed so far are also prerequisites of PSBLAS.</span></dd></dl>
<!--l. 56--><p class="noindent" ><span
<!--l. 58--><p class="noindent" ><span
class="cmr-12">Please note that the four previous libraries must have Fortran interfaces compatible with</span>
<span
class="cmr-12">AMG4PSBLAS; usually this means that they should all be built with the same</span>
<span
class="cmr-12">compiler as AMG4PSBLAS.</span>
class="cmr-12">compiler being used for AMG4PSBLAS.</span>
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class="cmr-12">[</span><a
href="userhtmlsu2.html" ><span
class="cmr-12">next</span></a><span
@@ -138,6 +138,6 @@ class="cmr-12">] [</span><a
href="userhtmlse3.html#userhtmlsu1.html" ><span
class="cmr-12">up</span></a><span
class="cmr-12">] </span></p></div>
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