<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpFirst" align="center" style="text-align:center;line-height:normal"><b><font size="4">JOINT CENTER FOR SATELLITE DATA ASSIMILATION</font></b><br></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" align="center" style="text-align:center;line-height:normal"><b><span><font size="4"> </font></span></b><b style="font-size:large">SEMINAR</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="text-align:center;line-height:normal"><span><font size="4"> </font></span><b style="text-align:center"><font size="4">Monday, November 20, 2017, 1 PM EST</font></b><b><font size="4"> </font></b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" align="center" style="text-align:center;line-height:normal"><b><font size="4">ECMWF’s Next Generation Software Stack for the IFS
Model and Product Generation: Future Workflow Adaptations.</font></b><b><font size="4"> </font></b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" align="center" style="text-align:center;line-height:normal"><b><font size="4">Dr. Tiago Quintino, European Centre for Medium-Range
Weather Forecasts (EXMWF)</font></b></p>
<b>Access it from your desk via Webex and Teleconference:</b><br><b>Or Join us in NCWCP Conference Room 2552-2553 (WEBEX Access)</b><br><b> </b><br><b>Webex:</b><br><b>Event Number: 997 215 789</b><br><b>Event Password: cj295m5s</b><br><b>Event Address: <a href="https://star-nesdis-noaa.webex.com/star-nesdis-noaa/onstage/g.php?MTID=ea5044cbe2de9f745eb55ceeb1c9166a8" target="_blank">https://star-nesdis-noaa.webex<wbr>.com/star-nesdis-noaa/onstage/<wbr>g.php?MTID=ea5044cbe2de9f745eb<wbr>55ceeb1c9166a8</a></b><br><b> </b><br><blockquote style="margin:0 0 0 40px;border:none;padding:0px"></blockquote><b>Seminar Line Information:</b><br><blockquote style="margin:0 0 0 40px;border:none;padding:0px"></blockquote><b>Phone Number: <a href="tel:(866)%20715-2479" value="+18667152479" target="_blank">1-866-715-2479</a></b><br><blockquote style="margin:0 0 0 40px;border:none;padding:0px"></blockquote><b>Passcode: 9457557</b><div><b>International: <a href="tel:(517)%20345-5260" value="+15173455260" target="_blank">1-517-345-5260</a></b></div><div><b><br></b></div><div><b>Flyer attached.<br></b>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>Starting 2014, ECMWF has
embarked on a research program on HPC Scalability, aiming to achieve Exascale
numerical weather prediction systems by 2025.</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>ECMWF operational forecast
generates massive amounts of I/O in short bursts, accumulating to tens of TB in
hourly windows. From this output, millions of user-defined daily products are
generated by a complex chain of transformations and regridding operators and
finally disseminated to member states and commercial clients.</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>These products are processed
from the raw output of the IFS model, within the time critical path and under
strict delivery schedule. Upcoming resolution increases and growing popularity
will increase both the size and number of these products. Based on expected
model resolution increases, by 2020 we estimate the operational model will
output over 100 TB/day and need to archive over 400 TB/day. Given that the I/O
workload is already one of the strongest bottlenecks in ECMWF's workflow, this
is one of the main challenges to reach Exascale NWP.</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>We present a new software stack
that ECMWF is developing to tackle these future challenges in the scalability
of model I/O and product generation, and reworking its operational workflows to
adapt to forthcoming I/O technologies.</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>In particular, we will present
the adaptation of IFS I/O server to the use of NVRAM technologies as a way to
buffer large amounts of forecast outputs en route to the product generation and
archival systems, thus minimizing file-system I/O within the operational
critical path and collocating post-processing with model computation.</b></p>
<p class="m_3280464946451515192m_7146214371759481498m_2794055432522941242gmail-MsoNormalCxSpMiddle" style="line-height:normal"><b>About the Speaker: Dr. Tiago Quintino is the Team Leader for
Scalability at the ECMWF’s Development Section, in Reading, United
Kingdom. His career spans 17 years
researching numerical algorithms and developing high performance scientific
software in the areas of Aerospace and Numerical Weather Prediction. Lately he is focusing on scalable data
handling algorithms for generation of meteorological forecast products,
optimizing their workloads and I/O of massive data-sets.</b></p></div></div></div><br></div>