<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>Hi everyone,</p>
<p>I'm happy to report that I have two open postdoctoral research
positions at Argonne National Laboratory focusing on LLVM-based
compiler technology for high-performance computing. US citizenship
is *not* required. If you've received your
<meta http-equiv="content-type" content="text/html; charset=utf-8">
Ph.D. within the past several years, or are in the process of
completing your degree requirements, and would like to join a team
working to prepare LLVM for the exascale era, I hope you'll apply
to one or both of these positions:</p>
<p> 401877: <a class="moz-txt-link-freetext" href="http://bit.ly/2i7mVLl">http://bit.ly/2i7mVLl</a> - 401878: <a class="moz-txt-link-freetext" href="http://bit.ly/2hShmQz">http://bit.ly/2hShmQz</a><br>
</p>
We'll be working with teams from several other laboratories and
universities, as well as the wider LLVM community, on topics ranging
from GPU register allocation to high-level optimizations of loops
and parallelism constructs. If you have any questions, please send
me an e-mail (<a class="moz-txt-link-abbreviated" href="mailto:hfinkel@anl.gov">hfinkel@anl.gov</a>).<br>
<br>
** Requisition 401877 - Optimization and Autotuning for
Supercomputing Compilers **<br>
<br>
<a class="moz-txt-link-freetext" href="http://bit.ly/2i7mVLl">http://bit.ly/2i7mVLl</a><br>
<br>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<table style="color: rgb(0, 0, 0); font-family: Geneva, Arial,
Helvetica, sans-serif; font-size: 12px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal; orphans: 2;
text-align: left; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255);" cellpadding="0" cellspacing="0" border="0" width="100%">
<tbody>
<tr>
<td colspan="2" align="left" width="100%">
<p><span id="com.peopleclick.cp.fieldlabel.JPM_DESCRIPTION"
class="pc-rtg-h2" title="" style="font-weight: bold;
color: rgb(117, 121, 124); font-size: 16px;
padding-bottom: 0px;"><label
id="com.peopleclick.cp.formdata.JPM_DESCRIPTION_label"
for="com.peopleclick.cp.formdata.JPM_DESCRIPTION"
style="cursor: pointer;">Position Description</label></span><span
class="Apple-converted-space"> </span><br>
<br>
<span class="pc-rtg-body" style="text-align: justify;">This
is an exciting opportunity to work on the future of
compiler technology for high-performance computing (HPC)
with a particular focus on supporting the world's
largest supercomputers as we head toward exascale. The<span
class="Apple-converted-space"> </span><span><span>extreme</span></span><span
class="Apple-converted-space"> </span>levels of
parallelism available on these machines combined with
their complex memory hierarchies<span
class="Apple-converted-space"> </span><span><span>create</span></span><span
class="Apple-converted-space"> </span><span><span>unique</span></span><span
class="Apple-converted-space"> </span>optimization
challenges. This research will explore<span
class="Apple-converted-space"> </span><span><span>enhancements</span></span><span
class="Apple-converted-space"> </span>to LLVM enabling
better modeling and exploration of the complex space of
potential optimizations in addition to<span
class="Apple-converted-space"> </span><span><span>enhancing</span></span><span
class="Apple-converted-space"> </span>LLVM's
optimization capabilities. One focus of this work will
be to enable more-effective autotuning by strengthening
the two-way communication between the autotuner and the
optimizer.<span class="Apple-converted-space"> </span><br>
<br>
<span><span>A passion for</span></span><span
class="Apple-converted-space"> </span><span><span>improving</span></span><span
class="Apple-converted-space"> </span>compiler
technology, a keen interest in high-performance
computing hardware, and<span
class="Apple-converted-space"> </span><span><span>a
desire</span></span><span
class="Apple-converted-space"> </span>to advance
scientific computing, will be rewarded in this position.</span></p>
<p><span
id="com.peopleclick.cp.fieldlabel.JPM_ESSENTIALFUNCTIONS"
class="pc-rtg-h2" title="" style="font-weight: bold;
color: rgb(117, 121, 124); font-size: 16px;
padding-bottom: 0px;"><label
id="com.peopleclick.cp.formdata.JPM_ESSENTIALFUNCTIONS_label"
for="com.peopleclick.cp.formdata.JPM_ESSENTIALFUNCTIONS" style="cursor:
pointer;">Position Requirements</label></span><span
class="Apple-converted-space"> </span><br>
<br>
<span class="pc-rtg-body" style="text-align: justify;"><br>
We expect you to have:<br>
</span></p>
<ul style="margin-top: 0px; margin-bottom: 0px;">
<li>Minimum education and experience or equivalent
combination:</li>
<li>Doctorate + 0 years.</li>
<li>Experience with compiler and toolchain development,
including intermediate representations,
machine-independent and machine-dependent optimizations,
and code generation; experience with LLVM and Clang is
preferred.</li>
<li>Significant experience with C++, including<span
class="Apple-converted-space"> </span><span><span>the
use of</span></span><span
class="Apple-converted-space"> </span>templates.</li>
<li>Demonstrated knowledge of instruction sets and
computer architectures, including pipeline structure and
hazards, and cache and memory hierarchies.</li>
<li>Experience with assembly languages, preferably at
least one of x86_64, PowerPC, and PTX.</li>
<li>Demonstrated<span class="Apple-converted-space"> </span><span><span>advanced
knowledge of</span></span><span
class="Apple-converted-space"> </span>high-level
compiler optimizations; experience with polyhedral loop
optimizations is preferred.</li>
<li><span><span>Advanced knowledge of</span></span><span
class="Apple-converted-space"> </span>the language
semantics of one of the following: C, C++, Fortran.</li>
<li><span><span>Advanced knowledge of</span></span><span
class="Apple-converted-space"> </span>mathematical-optimization
techniques, especially derivative-free optimization.</li>
<li>Experience with machine learning, especially
supervised learning.</li>
<li>Experience with high-performance computing and
scientific code development.</li>
<li>Experience with code optimization and<span
class="Apple-converted-space"> </span><span><span>the
use of</span></span><span
class="Apple-converted-space"> </span>profiling and
performance-monitoring tools and techniques.</li>
<li>Experience with Linux environments and Python.Good
software debugging skills.</li>
</ul>
In addition,<span class="Apple-converted-space"> </span><span><span>candidates</span></span><span
class="Apple-converted-space"> </span>should show:<br>
<ul style="margin-top: 0px; margin-bottom: 0px;">
<li>Effective analytical and<span
class="Apple-converted-space"> </span><span><span>problem-solving</span></span><span
class="Apple-converted-space"> </span>skills to<span
class="Apple-converted-space"> </span><span><span>contribute</span></span><span
class="Apple-converted-space"> </span>to<span
class="Apple-converted-space"> </span><span><span>creative</span></span><span
class="Apple-converted-space"> </span>solutions to
complex problems.</li>
<li>Good communications skills, both verbal and written.</li>
<li>Good<span class="Apple-converted-space"> </span><span><span>collaborative</span></span><span
class="Apple-converted-space"> </span>skills,
including the ability to work well<span
class="Apple-converted-space"> </span><span><span>with
other</span></span><span
class="Apple-converted-space"> </span>labs,
universities, computing centers, and industry.</li>
</ul>
</td>
</tr>
</tbody>
</table>
<br>
<br>
** Requisition 401878 - Parallelism, Memory, and Programming Models
for Supercomputing Compilers **<br>
<br>
<a class="moz-txt-link-freetext" href="http://bit.ly/2hShmQz">http://bit.ly/2hShmQz</a><br>
<br>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<table style="color: rgb(0, 0, 0); font-family: Geneva, Arial,
Helvetica, sans-serif; font-size: 12px; font-style: normal;
font-variant-ligatures: normal; font-variant-caps: normal;
font-weight: normal; letter-spacing: normal; orphans: 2;
text-align: left; text-indent: 0px; text-transform: none;
white-space: normal; widows: 2; word-spacing: 0px;
-webkit-text-stroke-width: 0px; background-color: rgb(255, 255,
255);" cellpadding="0" cellspacing="0" border="0" width="100%">
<tbody>
<tr>
<td colspan="2" align="left" width="100%">
<p><span id="com.peopleclick.cp.fieldlabel.JPM_DESCRIPTION"
class="pc-rtg-h2" title="" style="font-weight: bold;
color: rgb(117, 121, 124); font-size: 16px;
padding-bottom: 0px;"><label
id="com.peopleclick.cp.formdata.JPM_DESCRIPTION_label"
for="com.peopleclick.cp.formdata.JPM_DESCRIPTION"
style="cursor: pointer;">Position Description</label></span><span
class="Apple-converted-space"> </span><br>
<br>
<span class="pc-rtg-body" style="text-align: justify;">This
is an exciting opportunity to work on the future of
compiler technology for high-performance computing (HPC)
with a particular focus on supporting the world's
largest supercomputers as we head toward exascale. The<span
class="Apple-converted-space"> </span><span><span>extreme</span></span><span
class="Apple-converted-space"> </span>levels of
parallelism available on these machines combined with
their complex memory hierarchies<span
class="Apple-converted-space"> </span><span><span>create</span></span><span
class="Apple-converted-space"> </span><span><span>unique</span></span><span
class="Apple-converted-space"> </span>programming-model
and optimization challenges. This research will explore<span
class="Apple-converted-space"> </span><span><span>enhancements</span></span><span
class="Apple-converted-space"> </span>to LLVM enabling
the explicit representation and optimization of
parallelism and hierarchical-memory constructs.<span
class="Apple-converted-space"> </span><span><span>Enhancements</span></span><span
class="Apple-converted-space"> </span>to programming
models, including OpenMP, will be prototyped as we learn
how to best provide performance portability across a
range of future computing architectures.<br>
<br>
<span><span>A passion for</span></span><span
class="Apple-converted-space"> </span><span><span>improving</span></span><span
class="Apple-converted-space"> </span>compiler
technology, a keen interest in high-performance
computing hardware, and<span
class="Apple-converted-space"> </span><span><span>a
desire</span></span><span
class="Apple-converted-space"> </span>to advance
scientific computing, will be rewarded in this position.<br>
<br>
</span></p>
<p><span
id="com.peopleclick.cp.fieldlabel.JPM_ESSENTIALFUNCTIONS"
class="pc-rtg-h2" title="" style="font-weight: bold;
color: rgb(117, 121, 124); font-size: 16px;
padding-bottom: 0px;"><label
id="com.peopleclick.cp.formdata.JPM_ESSENTIALFUNCTIONS_label"
for="com.peopleclick.cp.formdata.JPM_ESSENTIALFUNCTIONS" style="cursor:
pointer;">Position Requirements</label></span><span
class="Apple-converted-space"> </span><br>
<br>
<span class="pc-rtg-body" style="text-align: justify;">We
expect you to have:<br>
</span></p>
<ul style="margin-top: 0px; margin-bottom: 0px;">
<li>Experience with compiler and toolchain development,
including intermediate representations,
machine-independent and machine-dependent optimizations,
and code generation; experience with LLVM and Clang is
preferred.</li>
<li>Significant experience with C++, including<span
class="Apple-converted-space"> </span><span><span>the
use of</span></span><span
class="Apple-converted-space"> </span>templates.</li>
<li>Demonstrated knowledge of instruction sets and
computer architectures, including pipeline structure and
hazards, and cache and memory hierarchies.</li>
<li>Experience with assembly languages, preferably at
least one of x86_64, PowerPC, and PTX.</li>
<li>Demonstrated<span class="Apple-converted-space"> </span><span><span>advanced
knowledge of</span></span><span
class="Apple-converted-space"> </span>high-level
compiler optimizations; experience with polyhedral loop
optimizations is preferred.</li>
<li><span><span>Advanced knowledge of</span></span><span
class="Apple-converted-space"> </span>the language
semantics of one of the following: C, C++, Fortran.</li>
<li>Experience with the OpenMP programming model.</li>
<li>Experience with high-performance computing and
scientific code development.</li>
<li>Experience with code optimization and<span
class="Apple-converted-space"> </span><span><span>the
use of</span></span><span
class="Apple-converted-space"> </span>profiling and
performance-monitoring tools and techniques.</li>
<li>Experience with Linux environments and Python.</li>
<li>Good software debugging skills.</li>
</ul>
<br>
In addition,<span class="Apple-converted-space"> </span><span><span>candidates</span></span><span
class="Apple-converted-space"> </span>should show:<br>
<ul style="margin-top: 0px; margin-bottom: 0px;">
<li>Effective analytical and<span
class="Apple-converted-space"> </span><span><span>problem-solving</span></span><span
class="Apple-converted-space"> </span>skills to<span
class="Apple-converted-space"> </span><span><span>contribute</span></span><span
class="Apple-converted-space"> </span>to<span
class="Apple-converted-space"> </span><span><span>creative</span></span><span
class="Apple-converted-space"> </span>solutions to
complex problems.</li>
<li>Good communications skills, both verbal and written.</li>
<li>Good<span class="Apple-converted-space"> </span><span><span>collaborative</span></span><span
class="Apple-converted-space"> </span>skills,
including the ability to work well<span
class="Apple-converted-space"> </span><span><span>with
other</span></span><span
class="Apple-converted-space"> </span>labs,
universities, computing centers, and industry.</li>
</ul>
</td>
</tr>
</tbody>
</table>
<br>
-Hal<br>
<pre class="moz-signature" cols="72">--
Hal Finkel
Lead, Compiler Technology and Programming Languages
Leadership Computing Facility
Argonne National Laboratory</pre>
</body>
</html>