Frequently asked questions

Event status

Q: Will the event be held in-person or virtually?

A: ATPESC is planned to be held in-person. 

Note: our plans are contingent on the federal and local COVID-19 controls and guidance in place on the date of the event.  If the event is unable to take place in person, programming will shift to a virtual format.


Q: Who is eligible to apply for Argonne Training Program on Extreme-Scale Computing (ATPESC)?

A: People who have written some non-trivial code for large systems, who develop at least some of the code they use (as opposed to use code written by others), whose applications require very large systems, and who expect to spend at least part of their career in developing and using code for scientific and engineering applications. The training program is not for beginners who have never written parallel code.

ATPESC provides advanced training to approximately 70 participants. Qualified applicants must have:

  • Substantial experience in MPI and/or OpenMP programming.  Equivalent experience with Data Science framework programming will also be considered.
  • Used at least one HPC system for a reasonably complex application and
  • Plans to conduct CS&E research on large-scale computers.


Q: How can I apply for ATPESC?

A: Please see the application page.


Q: Where can I register for ATPESC?

A: If you applied and were accepted into the program, you should have received an acceptance email from the ATPESC committee with a registration link and an access code for registration.

Q: If I live in the Chicagoland area, do I still need to register for ATPESC?

A: Yes, all participants and lecturers need to register so we can provide an accurate headcount for meals and seating. When registering, please state that you are a local resident and that housing is not being requested. You will be reimbursed for mileage/tolls only.  Please provide a Google map confirming mileage (round trip) from your home.

IMPORTANT:  Foreign National Documentation

Q: What documentation is necessary for foreign nationals to attend ATPESC and participate in the Argonne National Laboratory tour?

A: In order to receive account access and site access for the ANL tour, all foreign nationals must show that they are in legal status; meaning their immigration and naturalization paperwork is current. All foreign nationals attending the tour are required to present their documentation to the guards at the Argonne entrance. Foreign nationals arriving at the gate without the appropriate in-status immigration and naturalization service documentation will be denied.

WHAT’S REQUIRED we will be contacting you for copies of  your original passport, original visa, and/or I-94 or I-94W (Departure Record). If the expiration date on the I-94 or I-94W reads D/S (Duration of Status), you must have supporting immigration documentation (i.e., I-20, DS-2019).  We suggest having your documentation with you at all times.

Q: How can I request an invitation letter for my visa?

A: You can request an invitation letter at the time of registration for ATPESC.

Q: If I am a foreign national traveling from aboard, which type of visa should I apply for?

A: Carefully review the U.S. Visa Application procedures and Visa Waiver Program.

Q: I applied for a visa but it has not yet been approved. Should I still register?

A: Register and state that your visa is pending. When your visa has been approved, send to support@extremecomputingtraining.

Q: Do I need a non immigrant visa to participate in the program?

A: You will need to register as a foreign national and have a copy of your passport or have a valid I-20. Send your documents to support@extremecomputingtraining.

Q: How can I get the I-94 required?

A: Please visit this website: to get a copy of your I-94 upon arrival to the U.S. It will be recorded in the Customs Border Patrol (CBP) database electronically at the port of entry into the U.S.

Q: I will NOT have a valid visa during the workshop period. Is a valid I-20 enough to attend the workshop?

A: You will need to register as a foreign national and complete the foreign national form. Be sure to give the dates of your expired visa (F1 or J1) and send copies of your I-20 documentation. Please include all your educational background (i.e., BS, MS, schools and graduation dates).

ATPESC Resources and User Accounts

Q: How do I get the user accounts setup?

A: Your account will be set up when you follow the steps directed for registration.

Q: When applying for an ALCF user account, what project should I specify?

A: You should specify the project name “ATPESC2023”.

Q: Are participants required to bring their own laptops?

A: Yes. Participants will require to use their own laptops to connect to ATPESC Resources. Wifi connection will be provided by the program.


Q: Will ATPESC reimburse for driving instead of flying?

A: If you are driving to the training program, ATPESC will need to do a cost comparison (airline flight comparison) after we receive your registration information. You will be reimbursed for mileage/tolls only when a Google map confirming mileage round trip from your home is provided. We would reimburse the lowest cost.

Q: If I choose to rent a car will I get reimbursed?

A: Funding is not available for rental cars. ATPESC has contracted a Limousine Service to provide transportation to/from the Chicago airports. You will receive a service portal two weeks before the program starts to arrange your transportation.


Q: Are accommodations being funded for local lecturers?

A: If necessary, we can cover the night before for lecturers speaking at a morning session.

Q: Does the Q Center venue have laundry facilities?

A: Yes, complimentary self-service laundry facilities are available.

Meals Provided

A: The following meals are provided to the participants of ATPESC:

  • 7/29 Sat – none
  • 7/30 Sun – Breakfast, Dinner
  • 7/31-8/3 Mon-Thu – Breakfast, Lunch, Dinner
  • 8/4 Fri – Breakfast, Lunch
  • 8/5 Sat – Breakfast
  • 8/6 Sun – Breakfast, Dinner
  • 8/7-8/10 Mon-Thu – Breakfast, Lunch, Dinner
  • 8/11 Fri – Breakfast, Lunch
  • 8/12 Sat – Breakfast


Q: Is funding available for foreign nationals traveling from aboard?

A: If you were selected to participate in the training program, you will need to have your own funds to cover the flights to/from the United States. We would pay for travel and arrange a connection from your port of entry (for example, New York City to Chicago) to the meeting venue. This would be handled through our travel department. Please give details and flight preferences when registering and we will get back to you after registration has closed.

Q: I plan to take some personal time before and/or after attending ATPESC. Is funding available for the additional travel days?

A: ATPESC cannot fund personal time.  We are unable to book any travel outside the designated ATPESC travel days.

Q: Can I arrange my own flights?

A: If you would like ATPESC to cover your airfare, ATPESC support will need to arrange your travel through their travel department. When registering please give your flight preferences.

Q: Does ATPESC reimburse for airport parking at my hometown or non-U.S. home airport?

A: Parking fees are not covered.

Q: Does ATPESC reimburse for airline baggage fees?

A: Baggage fees are not covered.