<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Greetings, <div class=""><br class=""></div><div class="">I am a master’s student working on the shallow water model of the TS example 'ex11.c' as part of my thesis. Therefore, I am working with DMForest for the implementation of adaptive grids. I have a question and an observation. </div><div class=""><br class=""></div><div class="">I am trying to find relevant information about interpolation that takes place through the routine <span style="color: rgb(167, 95, 0); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">DMForestTransferVec</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">.</span> <font color="#000000" class=""><span style="caret-color: rgb(0, 0, 0);" class="">Perhaps it could be my inability to find it, but I am unable to locate the implementation of the routine </span></font></div><div class=""><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class=""><br class=""></span></div><div class=""><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">(forest-></span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(158, 118, 181);" class="">transfervec</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">)(dmIn</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(242, 137, 49);" class="">,</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">vecIn</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(242, 137, 49);" class="">,</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">dmOut</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(242, 137, 49);" class="">,</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">vecOut</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(242, 137, 49);" class="">,</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">useBCs</span><span style="font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255); color: rgb(242, 137, 49);" class="">,</span><span style="color: rgb(74, 92, 110); font-family: Menlo; font-size: 9pt; background-color: rgb(255, 255, 255);" class="">time). </span></div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""><br class=""></span></div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class="">Any information on this particular routine is highly appreciated.</span></div><div class=""><br class=""></div><div class="">Furthermore, I have developed a well balanced Riemann Solver that includes topography in the model. In the process of testing both the non-adaptive and adaptive version, I found that my results differed when I changed the type of DM. For instance, when I run a scenario in a fixed, non-adaptive grid with a DM of type 'P4est', I find that the well balanced nature is lost due to small perturbations all across the domain. However, this does not occur when I use a DM of type ‘plex’. Is there a radical change in the routines between the two DM’s? This is not as much of a question as it is an observation. </div><div class=""><br class=""></div><div class="">Thank you for all of your suggestions! </div><div class=""><br class=""></div><div class="">Regards, </div><div class=""><br class=""></div><div class="">Mukkund </div><div class=""><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);" class=""> </span></div><div class=""><br class=""></div></body></html>