<div dir="ltr"><div><div></div>Dear Devs,<br></div><br>is the PCBJACOBI solver fully ported to GPU in the latest petsc-dev version? if not, is there any intention to do so in the near future? <br><br>I have a convection-dominated (with strong discontinuities in the flow field) MHD problem where PCASM and PCBJACOBI both work fine with KSPGMRES.<br>
<div><div><br>Looking for a speedup in my code (which is using a petsc-dev version about two-months old), the only GPU alternative I found was PCJACOBI. This is indeed considerably faster on GPU, but does not converge (neither does, consistently, its CPU counterpart) if not for a few iterations before blowing up. Any other alternative for GPU-based preconditioners or solvers worth trying at the moment?<br>
<br></div><div>Thanks in advance for your advice<br><br></div><div>Andrea<br></div><div><br><br clear="all"></div><div><div><br>-- <br><span style="color:rgb(102,102,102)">Dr. Andrea Lani </span><br style="color:rgb(102,102,102)">
<span style="color:rgb(102,102,102)">Senior Research Engineer, PhD</span><br style="color:rgb(102,102,102)"><span style="color:rgb(102,102,102)">Aeronautics & Aerospace dept., CFD group </span><span style="color:rgb(102,102,102)"><br>
Von Karman Institute for Fluid Dynamics </span><br style="color:rgb(102,102,102)"><span style="color:rgb(102,102,102)">
Chausse de Waterloo 72, </span><br style="color:rgb(102,102,102)"><span style="color:rgb(102,102,102)">B-1640, Rhode-Saint-Genese, Belgium</span><span style="color:rgb(102,102,102)"><br>fax : +32-2-3599600 </span><br style="color:rgb(102,102,102)">
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work : +32-2-3599769 </span> <span style="background-color:rgb(255,255,255)"></span></span><u style="background-color:rgb(51,51,255);color:rgb(153,153,153)"><br><span style="background-color:rgb(255,255,255);color:rgb(0,0,153)"><a href="mailto:lani@vki.ac.be" target="_blank">lani@vki.ac.be</a></span></u>
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