# NERSC Weekly Email, Week of April 15, 2024<a name="top"></a> # ## Contents ## ## [Summary of Upcoming Events and Key Dates](#section1) ## - [Scheduled Outages](#outages) - [Key Dates](#dates) ## [This Week's Events and Deadlines](#section2) ## - [Join NERSC's Virtual Office Hours with Your Perlmutter Questions!](#pmofficehrs) - [Allocation Reductions Happening on Wednesday for Underutilized ERCAP Projects](#allocred) - [Brief Server Maintenance on mongodb Databases on Wednesday](#mongooutage) - [This week, for Graduate Student Appreciation Month: Getting Help via Tickets](#gradsthisweek) - [Register by Sunday for May 7-9 NERSC End-to-End LLM Bootcamp](#e2ellm) ## [Perlmutter](#section3) ## - [Perlmutter Machine Status](#perlmutter) - [Make the Most of Your Allocation: Submit Jobs on Perlmutter Now Rather than Later!](#jobsnow) ## [NERSC@50](#section4) ## - [Save the Date: Celebrate 50 Years of NERSC with Us October 22-24](#nug50) - [Read about NERSC History](#nerscfirsts) - [Seeking Volunteers for NUG Annual Meeting Planning Committee](#nugmtgvol) - [Join NERSC for a 50th Anniversary Seminar Series, Starting April 15!](#seminarseries) ## [NERSC Updates](#section5) ## - [Attention Students: NERSC Summer Internships Available!](#nerscinterns) - [Attention VASP Users: VASP 6 for GPUs Available at NERSC!](#vasp) ## [NERSC User Community ](#section6) ## - [Submit a Science Highlight Today!](#scihigh) - [Join NERSC for a Series of Special Community Calls for NERSC Grad Student & Postdoc Users!](#gradsatnersc) ## [Calls for Proposals & Nominations](#section7) ## - [Join the Student Cluster Competition at SC24](#scc) - [Nominations for George Michael Memorial HPC Fellowship Close May 1](#gmichael) - [Submit a Proposal for August NERSC/OLCF/NVIDIA Hackathon by May 8!](#hackathon) - [(NEW/UPDATED) Call for 2025 INCITE Proposals Now Open](#incite) ## [Upcoming Training Events](#section8) ## - [Learn to Use Spin to Build Science Gateways at NERSC: Next SpinUp Workshop Starts April 24!](#spinup) - [QMCPACK: Journey to Exascale on Aurora -- Apr 24, 2024](#qmcpack) - [Kokkos Training, April 25-26](#kokkos) - [ALCF AI Testbed Workshop Series, May-June 2024: Register for SambaNova Today & Cerebras by Friday!](#alcfaiwkshps) - [Join NERSC for May-October OpenMP Training Series, Beginning May 6](#omptraining) - [Debugging Challenging Memory and GPU Problems with TotalView, May 13, 2024](#tvtraining) - [(NEW/UPDATED) IDEAS HPC Best Practices Webinar on System Testing of Scientific Software on May 15](#hpcbpwebinar) ## [NERSC News ](#section9) ## - [Come Work for NERSC!](#careers) - [About this Email](#about) ([back to top](#top)) --- ## Summary of Upcoming Events and Key Dates <a name="section1"/></a> ## ### Scheduled Outages <a name="outages"/></a> (See <https://www.nersc.gov/live-status/motd/> for more info): - **Perlmutter** - 04/17/24 06:00-20:00 PST, Scheduled Maintenance - Perlmutter will be unavailable during the listed times due to scheduled maintenance. - 05/15/24 06:00-20:00 PST, Scheduled Maintenance - Perlmutter will be unavailable during the listed times due to scheduled maintenance. - **HPSS Archive (User)** - 05/01/24 09:00-15:00 PDT, Scheduled Maintenance - HPSS Archive will remain available during scheduled maintenance. Some tape file retrievals may be delayed during the maintenance window. - 06/26/24 09:00-13:00 PDT, Scheduled Maintenance - **HPSS Regent (Backup)** - 05/22/24 09:00-15:00 PDT, Scheduled Maintenance - HPSS Regent will remain available during scheduled maintenance. Some tape file retrievals may be delayed during the maintenance window. - 06/12/24 09:00-15:00 PDT, Scheduled Maintenance - **MongoDB** - 04/17/24 14:30-17:30 PDT, Scheduled Maintenance - MongoDB hosts mongodb05, mongodb06 and mongodb08 will be unavailable for OS upgrades during this window. ### Key Dates <a name="dates"/></a> April 2024 May 2024 June 2024 Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa Su Mo Tu We Th Fr Sa 1 2 3 4 5 6 1 2 3 4 1 7 8 9 10 11 12 13 5 6 7 8 9 10 11 2 3 4 5 6 7 8 14 15 16 17 18 19 20 12 13 14 15 16 17 18 9 10 11 12 13 14 15 21 22 23 24 25 26 27 19 20 21 22 23 24 25 16 17 18 19 20 21 22 28 29 30 26 27 28 29 30 31 23 24 25 26 27 28 29 30 #### This Week - **April 15, 2024**: [NERSC 50th Seminar Series](#seminarseries) - **April 16, 2024**: [Perlmutter Office Hours](#pmofficehrs) - **April 17, 2024**: - [First Quarterly Allocation Reductions](#allocred) - [Mongodb database brief maintenance](#mongooutage) - **April 18, 2024**: [Grads@NERSC Writing a Good Ticket](#gradsatnersc) - **April 21, 2024**: [Registration Deadline for May 7-9 End-to-End LLM Bootcamp](#e2ellm) #### Next Week - **April 23, 2024**: [INCITE Program Informational Webinar](#incite) - **April 24, 2024**: - [SpinUp Workshop](#spinup) - [QMCPack: Journey to Exascale on Aurora](#qmcpack) - **April 25, 2024**: - [Perlmutter Office Hours](#pmofficehrs) - [Grads@NERSC VSCode on Perlmutter](#gradsatnersc) - **April 25-26, 2024**: [Kokkos Training](#kokkos) #### Future - **April 29, 2024**: [NERSC 50th Seminar Series](#seminarseries) - **May 1, 2024**: - [George Michael Memorial HPC Fellowship Nominations Due](#gmichael) - [Registration Deadline for ALCF Groq AI & Graphcore AI Workshops](#alcfaiwkshps) - **May 6, 2024**: [OpenMP Training Series](#omptraining) - **May 7, 2024**: [INCITE Program Informational Webinar](#incite) - **May 8, 2024**: [Deadline for August Hackathon Proposals](#hackathon) - **May 13, 2024**: [TotalView Debugger Training](#tvtraining) - **May 15, 2024**: [IDEAS HPC Best Practices Webinar](#hpcbpwebinar) - **May 20, 2024**: [US-RSE Conference Notebook Submissions Due](#usrse) - **June 3, 2024**: [US-RSE Conference Poster & Talk Submissions Due](#usrse) - **June 14, 2024**: [New INCITE Proposals Deadline](#incite) - **July 19, 2024**: [Renewal INCITE Proposals Deadline](#incite) - **October 22-24, 2024**: [NERSC 50th Anniversary Celebration & NUG Meeting](#nug50) ([back to top](#top)) --- ## This Week's Events and Deadlines <a name="section2"/></a> ## ### Join NERSC's Virtual Office Hours with Your Perlmutter Questions! <a name="pmofficehrs"/></a> NERSC is offering virtual office hours to help users get their workflows up and running on Perlmutter. Users are welcome to bring questions and their own applications to get one-on-one help. The first three office hours in the series have been held. Additional office hours will be held online via Zoom, from 10 am to 12 noon (Pacific time) on the following dates: - Tuesday, April 16 - Thursday, April 25 For more information, including Zoom connection info, please see <https://www.nersc.gov/perlmutter-office-hours-marapr-2024/>. ### Allocation Reductions Happening on Wednesday for Underutilized ERCAP Projects <a name="allocred"/></a> Thrice annually, NERSC performs allocation reductions on DOE Mission Science projects. The allocation reduction process removes a portion of the remaining allocation from projects that are using it slowly and returns the time to DOE allocation managers for them to redistribute it to other projects based on their priorities and objectives. The reduction scheme applies separately to CPU and GPU allocations (e.g., a project that has underutilized CPU resources but not GPU resources will have only its CPU allocation reduced). ALCC, Education, and Exploratory projects are not subject to allocation reductions. Director’s Reserve projects may be subject to reductions, if needed to support various programs. Any project that started after January 17, 2024 will not be subject to the first round of reductions. This time redistribution is necessary to maintain a productive flow of jobs through NERSC systems and reduce queue wait times later in the year. As we near the end of the first quarter of the 2024 allocation year, we observe that more than half of all projects have used less than 8% of their allocation. More than 20% of projects have used no time at all. For 2024, we will perform allocation reductions on April 17, July 17, and October 16, 2024. The formula for the reductions has been updated to more accurately remove allocation from projects that are not using their allocation at the rate they estimated in their 2024 ERCAP proposals. For projects that are not meeting their quarterly usage plans, we will remove half of the difference between their actual and planned usage. For example, for a project with 10,000 CPU node-hours that planned to use 25% (2,500) this first quarter but used only 10% (1,000), NERSC will reduce their CPU node-hour allocation by 7.5% ((2,500 - 1,000)×0.5 = 1,500×0.5 = 750). These balances will be added to the appropriate DOE allocation manager’s reserve (i.e., BES project reductions will go back to the BES reserve) for them to redistribute. For more details on the policy please see the [Allocation Reductions webpage](https://www.nersc.gov/users/accounts/allocations/allocation-reductions/). ### Brief Server Maintenance on mongodb Databases on Wednesday <a name="mongooutage"/></a> User databases on mongodb05, mongodb06, mongodb07,mongodb08 will be briefly inaccessible this Wednesday, April 17 from 2:30-5:30 pm PDT due to a required system maintenance involving an OS upgrade from Ubuntu 18.04 to 20.04 to address critical security vulnerabilities. This is a continuation of our efforts from April 9th's OS upgrades which was incomplete due to unforeseen errors that came up. Current database versions will remain unchanged for users. ### This week, for Graduate Student Appreciation Month: Getting Help via Tickets <a name="gradsthisweek"/></a> & NERSC Early Career Award Presentation In honor of Graduate Student Appreciation Month, in April NERSC is holding a series of special community calls aimed at the 44% of NERSC users who are graduate students and postdocs. (Non grad/postdoc community members are welcome too!) **This Thursday, April 18**, learn how to **get help at NERSC with Tickets** to get your questions answered FAST! Learn about best practices for submitting tickets that will get your questions answered with a minimum of back-and-forth. Also, NERSC Early Career Award Winner Anthony Kremin (Berkeley Lab) will present his work on analyzing data retrieved from the Dark Energy Spectroscopic Instrument (DESI) using Perlmutter and NERSC resources. For the full list of events, please see the [Grads@NERSC website](https://www.nersc.gov/events/gradsatnersc/). ### Register by Sunday for May 7-9 NERSC End-to-End LLM Bootcamp <a name="e2ellm"/></a> NERSC will be co-organizing the end-to-end Large Language Model (LLM) bootcamp with OpenACC and NVIDIA. The bootcamp will be hosted virtually for three days from May 7-9, 2024 and is a focused, hands-on walk-through of data processing, LLM model training, and deployment pipeline paradigm. The **registration deadline is this Sunday, April 21, 2024**. For more details and to register, please visit the [webpage](https://www.nersc.gov/nersc-end-to-end-llm-bootcamp-may-2024/). ([back to top](#top)) --- ## Perlmutter <a name="section3"/></a> ## ### Perlmutter Machine Status <a name="perlmutter"/></a> Perlmutter is available to all users with an active NERSC account. Some helpful NERSC pages for Perlmutter users: * [Perlmutter queue information](https://docs.nersc.gov/jobs/policy/#qos-limits-and-charge) * [Timeline of major changes](https://docs.nersc.gov/systems/perlmutter/timeline/) * [Current known issues](https://docs.nersc.gov/current/#perlmutter) This section of the newsletter will be updated regularly with the latest Perlmutter status. ### Make the Most of Your Allocation: Submit Jobs on Perlmutter Now Rather than Later! <a name="jobsnow"/></a> While NERSC allocations are good for an entire year -- mid-January to mid-January the following year -- for best results, **NERSC recommends running jobs throughout the allocation year, and especially at the beginning.** Some projects unfortunately do not have the opportunity to use the entire amount of resources originally allocated to them, by beginning to run jobs too late in the allocation year: - Projects with very low utilization run the risk of losing node-hours to NERSC's allocation reduction scheme -- where NERSC returns unused allocations to the DOE allocation managers for them to reappropriate to other projects. - Projects that don't lose allocation in the reduction scheme still face challenges in getting all their jobs through the queue during the latter part of the year, when queue wait times rise. Projects with a strong track record of usage early in the year are often the beneficiaries of the allocation reduction scheme, with their requests to their program allocation manager for additional time fulfilled after a reduction. Furthermore, projects exhausting their allocation are eligible for the overrun queue. ([back to top](#top)) --- ## NERSC@50 <a name="section4"/></a> ## ### Save the Date: Celebrate 50 Years of NERSC with Us October 22-24 <a name="nug50"/></a> In honor of NERSC's fiftieth anniversary, we are planning an exciting program of anniversary-related events culminating with the annual NERSC User Group meeting, to be held October 22-24, 2024. Please join us to enjoy blasts from the past as well as fun in the future during this one-of-a-kind event! ### Read about NERSC History <a name="nerscfirsts"/></a> NERSC history experts are publishing articles and timelines in celebration of NERSC's golden anniversary. The most recent addition to the list is an article in the "In Their Own Words" series, on NERSC veteran [Jackie Scoggins](https://www.nersc.gov/news-publications/nersc-news/nersc50/page-9904/). For more on the NERSC 50th anniversary, please see the [NERSC 50th Anniversary](https://www.nersc.gov/news-publications/nersc-news/nersc50/) page. ### Seeking Volunteers for NUG Annual Meeting Planning Committee <a name="nugmtgvol"/></a> Calling all NERSC enthusiasts! We are seeking undergraduate, graduate student, and postdoc volunteers to help us plan the 2024 NUG Annual Meeting celebrating the 50 Years of NERSC! Bring your creativity, enthusiasm, and organizing skills to the monthly one-hour meetings to help create an amazing and memorable meeting. If this sounds interesting, please contact Lipi Gupta (<lipigupta@lbl.gov>) for more information and to volunteer. ### Join NERSC for a 50th Anniversary Seminar Series, Starting April 15! <a name="seminarseries"/></a> NERSC is presenting a seminar series featuring speakers reflecting on the center's half-century of advancing HPC innovation and science while looking to the future. The series began today, on Monday, April 15. The first presentation, by Alan Poon (Lawrence Berkeley National Laboratory) wa entitled "What We have Learned about the Universe from Low-Energy Neutrino Physics Experiments and NERSC's Role in the Discoveries". A recording of the presentation [is available](https://youtu.be/n_9Ol9BOfaU) (captioning and editing is still in progress). Additional talks will be posted on the [seminar series webpage](https://www.nersc.gov/events/nersc50-seminars) as speakers are confirmed. For more information on the series (including connection info), please see <https://www.nersc.gov/events/nersc50-seminars>. ([back to top](#top)) --- ## NERSC Updates <a name="section5"/></a> ## ### Attention Students: NERSC Summer Internships Available! <a name="nerscinterns"/></a> Are you an undergraduate or graduate student who will be enrolled as a student in the fall? Are you interested in working with NERSC staff on interesting technical projects? NERSC is looking for motivated students to join us for the summer in a paid internship role. Qualifications vary depending on the project, and pay is based on years of education completed. We have created a [list of summer internship projects on our website](https://www.nersc.gov/about/work-at-nersc/internships/nersc-summer-internship-projects/). Projects are still being added to the list so please check back for further additions. ### Attention VASP Users: VASP 6 for GPUs Available at NERSC! <a name="vasp"/></a> Are you a user of the VASP application for performing ab initio quantum-mechanical molecular dynamics (MD) using pseudopotentials and a plane wave basis set? Did you know that you can use NERSC-installed binaries that are optimized for Perlmutter? Anyone with a VASP license can gain access to NERSC's VASP binaries by filling out the [VASP License Confirmation Request form](https://nersc.servicenowservices.com/sp?id=sc_cat_item&sys_id=d2935b561b032c106c44ebdbac4bcbb6&sysparm_category=e15706fc0a0a0aa7007fc21e1ab70c2f) (login required). License-holders for VASP version 6 can access a GPU-accelerated version in addition to the CPU-only version 5.4 and a version 6 build for CPU only. For more information about VASP, please see the [VASP documention](https://docs.nersc.gov/applications/vasp/) on NERSC's documentation website. ([back to top](#top)) --- ## NERSC User Community <a name="section6"/></a> ## ### Submit a Science Highlight Today! <a name="scihigh"/></a> Doing cool science at NERSC? NERSC is looking for cool, scientific and code development success stories to highlight to NERSC users, DOE Program Managers, and the broader scientific community in Science Highlights. If you're interested in your work being considered to be used as a featured Science highlight, please let us know via our [highlight form](https://docs.google.com/forms/d/e/1FAIpQLScP4bRCtcde43nqUx4Z_sz780G9HsXtpecQ_qIPKvGafDVVKQ/viewform). ### Join NERSC for a Series of Special Community Calls for NERSC Grad Student & Postdoc Users! <a name="gradsatnersc"/></a> In honor of Graduate Student Appreciation Month, in April NERSC is holding a series of special community calls aimed at the 44% of NERSC users who are graduate students and postdocs. (Non grad/postdoc community members are welcome too!) Remaning sessions are: On **Thursday, April 18**, learn how to **get help at NERSC with Tickets** to get your questions answered FAST! Learn about best practices for submitting tickets that will get your questions answered with a minimum of back-and-forth. On **Thursday, April 25**, learn how to use **VSCode on Perlmutter**. Learn how to set up the VSCode IDE on Perlmutter, for editing and viewing files, and using the terminal directly on Perlmutter. We look forward to seeing you at these events! For more information and connection info (posted the day before) please see <https://www.nersc.gov/events/gradsatnersc/>. ([back to top](#top)) --- ## Calls for Proposals & Nominations <a name="section7"/></a> ## ### Join the Student Cluster Competition at SC24 <a name="scc"/></a> The [Student Cluster Competition](https://sc24.supercomputing.org/students/student-cluster-competition/) (SCC) and [IndySCC](https://sc24.supercomputing.org/students/indyscc/) for [SC24](https://sc24.supercomputing.org/) are now accepting team applications. The SCC is a fantastic pathway for undergraduates to prepare for a career in HPC as teams of students design, build and operate a small HPC cluster in a 48-hour competition at the annual Supercomputing conference. The IndySCC is its education-focused counterpart, in which teams learn to run scientific applications on provided HPC hardware, during the months leading up to SC24. Applications are due May 15, 2024. ### Nominations for George Michael Memorial HPC Fellowship Close May 1 <a name="gmichael"/></a> The George Michael Memorial HPC Fellowship award committee is seeking nominations for this fellowship, which honors exceptional PhD students throughout the world whose research focus is on high-performance computing applications, networking, storage, or large-scale data analysis using the most powerful computers currently available. The Fellowship includes a $5000 honorarium, recognition on the ACM, IEEE CS, and ACM SIGHPC websites, and paid travel expenses to attend SC24, where recipients will be honored at the SC Conference Awards Ceremony. Candidates must be enrolled in a full-time PhD program at an accredited college or university and must meet the minimum scholastic requirements at their institution. They are expected to have completed at least one year of study and to have at least one year remaining between the application deadline and their expected graduation. Applications from women, minorities, international students, and all who contribute to diversity are encouraged. Nominations are in the form of self-nominations, submitted online. For more information and to nominate, please see the [fellowship webpage](https://awards.acm.org/hpc-fellows/nominations). Nominations are due May 1, 2024. ### Submit a Proposal for August NERSC/OLCF/NVIDIA Hackathon by May 8! <a name="hackathon"/></a> NERSC, in conjunction with NVIDIA and OLCF, will be hosting a Open Hackathon from August 20th-22nd with an opening day on August 13th as part of the annual Open Hackathon Series. This year, the hackathon will be virtual and selected code teams will be able to test and develop on [Perlmutter](https://www.nersc.gov/systems/perlmutter/), and there is also the option to use an ARM system. Hackathons combine teams of developers with mentors to either prepare their own application(s) to run on GPUs or optimize their application(s) that currently run on GPUs. This virtual event consists of a kick-off day, where hackers and mentors video-conference to meet and develop their list of hackathon goals, as well as get set up on the relevant systems. This is followed by a one week preparation period before the 3-day intensive primary event. **Please note the deadline to submit a proposal is 11:59 PM Pacific, May 8th 2024.** So [apply](https://www.openhackathons.org/s/siteevent/a0C5e000008dWi2EAE/se000287) now! Teams should consist of at least three developers who are intimately familiar with (some part of) their application, and they will work alongside two mentors with GPU programming expertise. If you want/need to get your code running/optimized on a GPU-accelerated system, these hackathons offer a unique opportunity to set aside 4 days, surround yourself with experts in the field, and push toward your development goals. During the event, teams will have access to compute resources provided by NERSC, and OLCF. For more information, or to submit a short proposal form, please visit the [Open Hackathon’s event page](https://www.openhackathons.org/s/siteevent/a0C5e000008dWi2EAE/se000287) or NERSC's [event page](https://sites.google.com/lbl.gov/august-2024-gpu-hackathon/home). Please contact Hannah Ross (<HRoss@lbl.gov>) with any questions. ### (NEW/UPDATED) Call for 2025 INCITE Proposals Now Open <a name="incite"/></a> The 2025 Call for Proposals for the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program, the major means by which the scientific community gains access to the nation's fastest supercomputing resources, is now open. The program aims to accelerate scientific discoveries and technological innovations by awarding, on a competitive basis, time on supercomputeres to researcherse with large-scale, computationally intensive projects that address "grand challenges" in science and engineering. You are encouraged to attend an informational webinar on April 23 or May 7 to learn more about INCITE and the allocation process. New proposals are due June 14, 2024, and renewals are due July 19, 2024. For more information, please see the [INCITE website](https://doeleadershipcomputing.org/). ([back to top](#top)) --- ## Upcoming Training Events <a name="section8"/></a> ## ### Learn to Use Spin to Build Science Gateways at NERSC: Next SpinUp Workshop Starts April 24! <a name="spinup"/></a> Spin is a service platform at NERSC based on Docker container technology. It can be used to deploy science gateways, workflow managers, databases, and all sorts of other services that can access NERSC systems and storage on the back end. New large-memory nodes have been added to the platform, increasing the potential of the platform for new memory-constrained applications. To learn more about how Spin works and what it can do, please listen to the NERSC User News [podcast on Spin](https://anchor.fm/nersc-news/episodes/Spin--Interview-with-Cory-Snavely-and-Val-Hendrix-e1pa7p). Attend an upcoming SpinUp workshop to learn to use Spin for your own science gateway projects! Applications for sessions that begin Wednesday, April 24 [are now open](https://www.nersc.gov/spinup-workshop-apr2024/) SpinUp is hands-on and interactive, so space is limited. Participants will attend an instructional session and a hack-a-thon to learn about the platform, create running services, and learn maintenance and troubleshooting techniques. Local and remote participants are welcome. If you can't make these upcoming sessions, never fear! More sessions are planned for June, September, and December. See a video of Spin in action at the [Spin documentation](https://docs.nersc.gov/services/spin/) page. ### QMCPACK: Journey to Exascale on Aurora -- Apr 24, 2024 <a name="qmcpack"/></a> [QMCPACK](https://qmcpack.org/) is a highly optimized simulation package for Quantum Monte Carlo methods. ALCF is hosting a webinar that details the QMCPACK team's journey to exascale on Aurora on April 24, as part of the ALCF Developer's Sessions. As exascale supercomputers are being deployed in the US, QMCPACK developers have migrated the code base to a performance-portable implementation for maximal production. In this talk, Argonne's Ye Luo will share the team's porting experience and demonstrate the impressive performance achieved on Intel Max GPUs. For more information on the event, speaker, and to register, please visit [the training website](https://www.nersc.gov/qmcpack-exascale-aurora-apr2024/). ### Kokkos Training, April 25-26 <a name="kokkos"/></a> Kokkos is a C++-based programming model for writing performance portable applications targeting all major HPC platforms. The Kokkos team will present a 2-day (3-hour each) hands-on training series on April 25-26 to help new and existing Kokkos users understand parallel programming abstractions and ways to expose them using the framework. The first day of the training will be focused on new users who are trying to use Kokkos to write portable parallel code that can take advantage of both CPU and GPU nodes of Perlmutter. On the second day, the training will focus on advanced concepts in Kokkos or if the users wish to discuss porting or optimizing their existing codes to Kokkos, a group of experienced Kokkos developers will be available for individual sessions. For more information and to register, please see <https://www.nersc.gov/portability-series-kokkos-apr2024/>. ### ALCF AI Testbed Workshop Series, May-June 2024: Register for SambaNova Today & Cerebras by Friday! <a name="alcfaiwkshps"/></a> ALCF is hosting [four training workshops](https://www.nersc.gov/users/training/events/2024/alcf-ai-testbed-training-workshops-may-jun-2024/) that will introduce attendees to the novel AI accelerators deployed at the ALCF AI Testbed. The four workshops are independent events for which registration must be completed separately. The workshops, including event dates and registration deadlines, are as follows: - [SambaNova AI Workshop](https://www.alcf.anl.gov/events/sambanova-ai-training-sp24), April 30-May 1 (registration has ended) - [Cerebras AI Workshop](https://www.alcf.anl.gov/events/cerebras-ai-training-sp24), May 7-8 (registration has ended) - [Groq AI Workshop](https://www.alcf.anl.gov/events/groq-ai-training-sp24), June 4-5 (register by May 1) - [Graphcore AI workshop](https://www.alcf.anl.gov/events/graphcore-ai-training-sp24), June 11-12 (register by May 1) ### Join NERSC for May-October OpenMP Training Series, Beginning May 6 <a name="omptraining"/></a> The OpenMP training series presented by Michael Klemm of AMD the OpenMP ARB, and Christian Terboven of RWTH Aachen University, is part of the [Performance Portability training series](https://www.nersc.gov/performance-portability-series-2023-2024/). OpenMP is a portable programming model supported by multiple scientific compilers on CPU and GPU architectures. This monthly OpenMP training series offered from May to October 2024 will cover topics including OpenMP basics, parallel worksharing, tasking, memory management and affinity, vectorization, GPU offloading, and MPI/OpenMP hybrid programming. The format of each training session will be presentations followed by homework assignments. Homework solutions will be reviewed at the beginning of the next session. The first session is currently scheduled for May 6th. For detailed session dates and topics, and to register, please visit [the training webpage](https://www.nersc.gov/openmp-training-series-may-oct-2024/). ### Debugging Challenging Memory and GPU Problems with TotalView, May 13, 2024 <a name="tvtraining"/></a> NERSC is hosting a training event on effectively using TotalView to debug challenging memory and NVIDIA GPU problems. TotalView from Perforce Software is a parallel debugger for complex C, C++, and Fortran applications. Using live demonstrations running on Perlmutter, you'll learn how to leverage TotalView's powerful memory debugging technology to find memory errors in parallel codes, and to debug CUDA, OpenMP, and OpenACC code running on NVIDIA GPUs. For more information and to register, please see the [event page](https://www.nersc.gov/users/training/events/2024/debugging-challenging-memory-and-gpu-problems-with-totalview-may-13-2024/). ### (NEW/UPDATED) IDEAS HPC Best Practices Webinar on System Testing of Scientific Software on May 15 <a name="hpcbpwebinar"/></a> The IDEAS Productivity project is hosting an upcoming webinar in their HPC Best Practices Series, entitled "Getting it Right: System Testing of Scientific Software" on May 15, from 10-11 am (Pacific Time). Abstract: Testing software to ensure its correctness is a challenging yet critical task that can consume more than 50% of the software lifecycle. Over the past decade, we have built software testing practices into our development frameworks and are embracing the use of unit tests and continuous integration–testing as we code. However, these types of tests focus heavily on covering individual code elements and may miss important system-level requirements. In scientific software, we often model complex behaviors, and our applications are heavily data-driven and configurable. In addition, we have added machine learning components into this mix. Together, this situation can leave our systems vulnerable to subtle, incorrect behaviors, which can impact our scientific results. In this talk, I will discuss system testing for scientific software, present some challenges, such as configurability, and present some techniques we can use to help improve the testing process. Presenter: Myra Cohen (Iowa State University) Participation is free, but registration is required. For more information and to register, please see the [event webpage](https://ideas-productivity.org/events/hpcbp-083-gettingitright). ([back to top](#top)) --- ## NERSC News <a name="section9"/></a> ## ### Come Work for NERSC! <a name="careers"/></a> NERSC currently has several openings for postdocs, system administrators, and more! If you are looking for new opportunities, please consider the following openings: - [Computer Systems Engineer 3](http://phxc1b.rfer.us/LBLle29lM): Develop software libraries, algorithms and methodologies for HPC applications. - [Network Group Lead](http://phxc1b.rfer.us/LBLlcr8u1): Lead a team of network engineers responsible for the NERSC network architecture and infrastructure. 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