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<!--l. 420--><div class="crosslinks"><p class="noindent"><span
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<h4 class="subsectionHead"><span class="titlemark"><span
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class="cmr-12">4.2 </span></span> <a
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id="x16-150004.2"></a><span
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class="cmr-12">GPU example</span></h4>
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<!--l. 422--><p class="noindent" ><span
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class="cmr-12">The code reported in Figure</span><span
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class="cmr-12"> </span><a
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href="#x16-15001r5"><span
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class="cmr-12">5</span><!--tex4ht:ref: fig:gpu-ex1 --></a> <span
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class="cmr-12">shows how to set up a program exploiting the combined</span>
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<span
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class="cmr-12">GPU capabilities of PSBLAS and AMG4PSBLAS.</span>
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<!--l. 425--><p class="indent" > <a
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id="x16-15001r5"></a><hr class="float"><div class="float"
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>
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<div class="center"
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<!--l. 437--><p class="noindent" >
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<div class="minipage"><pre class="verbatim" id="verbatim-10">
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! build a one-level RAS with overlap 2 and ILU(0) on the local blocks.
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call P%init(’AS’,info)
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call P%set(’SUB_OVR’,2,info)
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call P%build(A,desc_A,info)
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... ...
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! solve Ax=b with preconditioned BiCGSTAB
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  call psb_krylov(’BICGSTAB’,A,P,b,x,tol,desc_A,info)
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</pre>
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<!--l. 448--><p class="nopar" ></div></div>
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<br /> <div class="caption"
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><span class="id">Listing 5: </span><span
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class="content">setup of a one-level Schwarz preconditioner.</span></div><!--tex4ht:label?: x16-15001r5 -->
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