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<p class="MsoNormal">Not sure if there are many slepc users here, but I have a question regarding MFN in slepc.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Essentially I am running a loop over time steps, and at each step I would like to compute a matrix exponential, however the matrix that I am computing the exponential of changes in a non-trivial way at each time step.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It seems like the proper way to implement this is to build and destroy an MFN object at each time step. However, this doesn’t seem terribly efficient as most Krylov methods I have looked at (Expokit) require a large amount of workspace
memory allocation at runtime.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is there a safe way to change the operator appearing in the MFN object without having to destroy and recreate?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best,<br>
Tyler<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">+++++++++++++++++++++++++++++<o:p></o:p></p>
<p class="MsoNormal">Tyler Guglielmo<o:p></o:p></p>
<p class="MsoNormal">Postdoctoral Researcher<o:p></o:p></p>
<p class="MsoNormal">Lawrence Livermore National Lab<o:p></o:p></p>
<p class="MsoNormal">Office: 925-423-6186<o:p></o:p></p>
<p class="MsoNormal">Cell: 210-480-8000<o:p></o:p></p>
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<p class="MsoNormal">+++++++++++++++++++++++++++++<o:p></o:p></p>
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