Perlmutter Timeline¶

This page records a brief timeline of significant events and user environment changes on Perlmutter.

September 24, 2021¶

Upgraded internal management software
Upgraded system I/O forwarding software and moved it to a more performant network
Fixed csh environment
Performance profiling tool that request access to hardware counters (such as Nsight Compute) should work now

Deployed numerous network upgrades and changes intended to increase responsiveness and performance
Increased robustness for login node load balancing

Updated to CPE 21.09. A recompile is recommended but not required. Major changes of note include:
- Upgrade MPICH to 8.1.9 (from 8.1.8)
- Upgrade DSMML to 0.2.1 (from 0.2.0)
- Upgrade PALS to 1.0.17 (from 1.0.14)
- Upgrade OpenSHMEMX to 11.3.3 (from 11.3.2)
- Upgrade craype to 2.7.10 (from 2.7.9)
- Upgrade CCE to 12.0.3 (from 12.0.2)
- Upgrade HDF5 to 1.12.0.7 (from 1.12.0.6)
- GCC 11.2.0 added
Added cuda module to the list of default modules loaded at startup
Set BASH_ENV to Lmod setup file
Deployed numerous network upgrades and changes intended to increase responsiveness and performance
Performed kernel upgrades to login nodes for better fail over support
Added latest CMake release as cmake/git-20210830, and is set as the default cmake on the system

Updated NVIDIA driver (to nvidia-gfxG04-kmp-default-450.142.00_k4.12.14_150.47-0.x86_64). This is not expected to have any user impact.

Tips for users:

Please use module load cuda and module av cuda to get the CUDA Toolkit, including the CUDA C compiler nvcc, and associated libraries and tools.
Cmake may have trouble picking up the correct mpich include files. If it does, you can use set ( CMAKE_CUDA_FLAGS "-I/opt/cray/pe/mpich/8.1.8/ofi/nvidia/20.7/include") to force it to pick up the correct one.

Perlmutter achieved 64.6 Pflop/s, putting it at No. 5 in the Top500 list.

Perlmutter supercomputer dedication.

Perlmutter Phase 1 delivered.