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<p class="MsoNormal">The Belos package has block Krylov solvers that can solve for several right hand sides (multivector). However, you need to have all the right hand sides ready at the same time.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Erik<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Trilinos-Users <trilinos-users-bounces@trilinos.org> on behalf of "Heroux, Mike" <MHeroux@CSBSJU.EDU><br>
<b>Date: </b>Thursday, October 22, 2020 at 2:24 PM<br>
<b>To: </b>ztdepyahoo <ztdepyahoo@gmail.com>, "trilinos-users@trilinos.org" <trilinos-users@trilinos.org><br>
<b>Subject: </b>[EXTERNAL] Re: [Trilinos-Users] How to solve Ax=bs with many righ hand sides vector.<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">As I recall, it is hard to get Aztec to accept a new right hand side without having it recompute the setup phase. However, it’s been 20 years since I last used it.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">AztecOO works very similarly and permits separation of the setup from the solve.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Trilinos-Users <trilinos-users-bounces@trilinos.org> on behalf of ztdepyahoo <ztdepyahoo@gmail.com><br>
<b>Date: </b>Wednesday, October 21, 2020 at 11:30 PM<br>
<b>To: </b>"trilinos-users@trilinos.org" <trilinos-users@trilinos.org><br>
<b>Subject: </b>[Trilinos-Users] How to solve Ax=bs with many righ hand sides vector.</span><o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Microsoft YaHei"">I use Aztec to solve Ax=b for my CFD problem. and the matrix A is fixed, but vector b may change values. So i want to know how to solve Ax=bs with many righ hand sides in one
turn. </span><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:16.8pt"><span style="font-size:10.5pt;font-family:"Microsoft YaHei"">Regards</span><o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:10.5pt;font-family:"Microsoft YaHei""> </span><o:p></o:p></p>
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<p class="MsoNormal" style="word-break:break-all"><b><span style="font-size:12.0pt;color:#31353B">ztdepyahoo</span></b><o:p></o:p></p>
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<p class="MsoNormal" style="word-break:break-all"><span style="font-size:10.5pt;color:#9B9EA1">ztdepyahoo@gmail.com</span><o:p></o:p></p>
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<p class="MsoNormal" style="line-height:13.5pt"><span style="font-size:9.0pt;font-family:MingLiU;color:#B5B9BD">签</span><span style="font-size:9.0pt;font-family:"MS Gothic";color:#B5B9BD">名由</span><span style="font-size:9.0pt;font-family:"Microsoft YaHei";color:#B5B9BD">
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<span style="font-family:"MS Gothic";color:#4196FF;text-decoration:none">网易</span><span style="font-family:MingLiU;color:#4196FF;text-decoration:none">邮</span><span style="font-family:"MS Gothic";color:#4196FF;text-decoration:none">箱大</span><span style="font-family:MingLiU;color:#4196FF;text-decoration:none">师</span></a>
</span><span style="font-size:9.0pt;font-family:"MS Gothic";color:#B5B9BD">定制</span><span style="font-size:9.0pt;font-family:"Microsoft YaHei";color:#B5B9BD">
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