IN5050 - Dolphin PCI Express Resources & FAQ

 

A page for resources and frequently asked questions for the Dolphin machines. If you have any other questions, please use the Mattermost-channel.

The following table gives an overview of the status of the lab machines in the lab at IFI. The lab machines are connected to a PCI Express switch. The setup contains two Intel x86_64 machines, running Ubuntu 18.04 LTS, and four Jetson AGX Xavier Development kits running Linux 4 Tegra (L4T) 32.6.1, which is based on Ubuntu 18.04.

Remember that you have to SSH into in5050.mlab.no to access the lab-net here at IFI. Username and password have been provided to all groups:

  Dolphin Status (Home Exam)
Computer Node ID CPU GPU   Memory Compute Capability SIMD Capability Status
x86 Computers
in5050-2014-10.mlab.no 4 Intel Core i5-4590 Quadro K2200   8 GB 5.0 SSE 4.3 / AVX2 Operational
in5050-2014-11.mlab.no 8 Intel Core i5-4590 Quadro K2200   8 GB 5.0 SSE 4.2 / AVX2 Operational
Tegra Xavier Computers
tegra-1.mlab.no 12 Nvidia Carmel Volta (GV11B)   16 GB 7.2 NEON / Advanced SIMD Operational
tegra-2.mlab.no 16 Nvidia Carmel Volta (GV11B)   16 GB 7.2 NEON / Advanced SIMD Operational
tegra-3.mlab.no 20 Nvidia Carmel Volta (GV11B)   32 GB 7.2 NEON / Advanced SIMD Operational
tegra-4.mlab.no 24 Nvidia Carmel Volta (GV11B)   32 GB 7.2 Neon / Advanced SIMD Operational

The login to open the page is the same as you use to access the Home Exams.

 

SISCI Programming Resources

Dolphin SISCI API Documentation

Dolphin SISCI User Guide

 

Frequently Asked Questions

 

Q: There are some issues with the SISCI API and the PCI Express networks. How do I get in touch with Dolphin?

A: You can get in touch with Dolphin Support at simula-support@dolphinics.no

 

Q: Can groups share machines?

A: Yes, but make sure to use your group ID when generating the "segment ID." If many groups try to use the same segment ID, you will get a "segment busy" error.

 

Q: Can all machines talk to each other over PCI Express?

A: Yes. The machines are connected with a PCI Express switch

 

Q: How can we find the code examples that Dolphin talked about in the lecture?

A: Check the /opt/DIS directory of the machine.