<div dir="ltr">Here is what I have from today's discussion. From here on now we will have to get more involved as we decide on what goes into the next public distribution. So if you have the time please take a read and help us make this document as thorough as possible<br><br> <br><div><div><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt" id="docs-internal-guid-339d9470-b340-6d31-4ceb-d642cc0f5497"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">WWIII Notes -- Sep 9th 2015</span></p><br><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">This was the first WAVEWATCH III telecon meeting after the Summer break. The topic of discussion was the coming public release of v 5 of WAVEWATCH III. v 4.18 was released in March of 2014, so a decision was made a while ago that we should have another release in March of 2016. Broadly speaking we would like to stick to this deadline though the deadline can be moved around a little. However for the moment March 2016 is what we are sticking with. Keeping that in mind I would like most of the major packages be ready for integration in the Trunk by November so we can start doing detailed regression testing. The packages that are ready earlier should be delivered early. I am going to go over the different major milestones that we have identified for v 5 and what we discussed about them. With each milestone I am going to add target implementation dates (after discussion with the developers) so we have an idea of status and delivery. Here are the major packages (ordered as I believe they will be ready for reintegration into the trunk)</span></p><br><ul style="margin-top:0pt;margin-bottom:0pt"><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Sea state dependant stress calculations (switch FLD) -- Development team URI </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">: According to Brandon they are very close to having this work complete. This package seems to be the closest to being ready and we should have this ready for integration into trunk and be tested in the next month or so</span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Optimize partition tracking algorithm in ww3_systrk -- Development team NCEP: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">This work has essentially been completed by Andre in an offline code. It needs to be ported into the subversion server. Since this is an independent code it does not preclude any other development and hence its implementation is not time constrained. Nevertheless Andre has scheduled a completion date by the end of October.</span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Implicit scheme for WAVEWATCH III -- Development team Aaron Ronald and Mathieu Dutor: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">I had an offline conversation with Aaron about this. They have taken care of most issues associated with this package. This primarily affects the unstructured grid option in WAVEWATCH III and they have taken some restructuring of arrays that have improved performance and significantly enhanced scalability. They expect to have this (with new regression tests) to be ready by November. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">ESMF Interface for wave coupling -- Development team Tim Campbell, NRL: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Tim has added esmf modules to the WAVEWATCH III model. At the moment it works for a single grid (grid type regular lat - lon) model. The import feature (variables from other models being imported into WW-III) is complete. The export feature (variables from WW-III going to other models) is still being developed. As soon as that is ready this will be ready to be incorporated into the trunk as a first step ESMF capability. This is expected in the next month or so. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Ice Scattering -- Development team, NRL, IFREMER, ENVIRONMENT CANADA: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Waiting to hear from Fabrice on when they want the merge back to the trunk to happen. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Converting SMC option to a propagation type from a switch -- Development team, UKMO: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Jian - Guo has some updates on this. I will create a branch so he can provide the updates to the server. They are trying to determine how to make the SMC grid option work in multi-grid mode with the other grids. For that we may have a series of offline emails / chats. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Banner et al source term package (switch ST5) -- Development team UNSW: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Had a chat with Russell before the meeting and they are close to finishing their work. Have a few ends to tie up but Russell seems very comfortable with the idea of delivering the package by November. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Space Time Extremes -- Development team NCEP / ISMAR: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Waiting to hear from Henrique about the status of the project. Validation exercises are planned over the fall. Need a rough estimate on when it will be ready for integration to the trunk</span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">TSA -- Development team BIO: </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Waiting to hear from either Will or Bash on the status of this. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Two way nesting for all grid types -- Development team NRL : </span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">This is going to be moved to the next implementation as it is seen as a nice feature to have but is not at the moment seen as a significant limitation of the model. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Namelists for ww3_multi -- Development team IFREMER / NRL / NCEP</span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">: This is a major upgrade. Suggestion was made whether it should be left out of this development cycle and effort should be made to get all the other features in. However there was strong support for the namelist option so for now we are going to keep it in the development cycle. Since the idea is that this is a design feature to pass information from the ww3_multi.inp file to the code, the chance of finding hidden bugs like in some other algorithms is limited so the delivery of this feature can be delayed. We will make our best effort to get some for of the name list formats in ww3_multi. Mickael has some ideas and he will start on this effort and we will all try and chime in later to help speed up this process as much as possible. </span></p></li><li dir="ltr" style="list-style-type:disc;font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"><p dir="ltr" style="line-height:1.38;margin-top:0pt;margin-bottom:0pt"><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:700;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">Memory Footprint and hyperscaling -- Development team NRL/NCEP:</span><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline"> This is still at an exploratory level. The purpose is to try to reduce the memory usage during the initial grid mapping stage. Depending on the level of coding needed this may have to be moved to next upgrade. We will take an initial look at this and determine what is feasible at this stage. </span></p></li></ul><br><span style="font-size:14.6667px;font-family:Arial;color:rgb(0,0,0);background-color:transparent;font-weight:400;font-style:normal;font-variant:normal;text-decoration:none;vertical-align:baseline">These are all the points that I have from my notes. If I have missed anything please let me know.<br><br></span><div><div class="gmail_signature"><div dir="ltr"><div><div>---------------------------------------------------------------<br>Arun Chawla <br></div>Waves Team Lead<br></div>Marine Modelling & Analysis Branch <br><div><div>Room 2101<br>National Center for Weather & Climate Prediction<br>5830 University Research Court<br>College Park, MD 20740<br>Ph: 301-683-3740<br>Fx: 301-683-3703<br>------------------------------------------------------------<br><br></div></div></div></div></div>
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