EESSI - EUROPEAN ENVIRONMENT FOR SCIENTIFIC SOFTWARE INSTALLATIONS
The main goal of this project is the preparation and building of a commonly used software stack on HPC infrastructure and beyond.
EESSI Deployment on HPC Vega
In case of HPC Vega the project of EESSI deployment via native CernVM-FS and (6 x) Squid Proxy servers. The CernVM-FS client is available cluster-wise for all users on login and compute nodes.
Production EESSI repository
Initialisation of modules 2023.06:
source /cvmfs/software.eessi.io/versions/2023.06/init/lmod/bash
Initialisation of modules 2025.06:
source /cvmfs/software.eessi.io/versions/2025.06/init/lmod/bash
Output:
Modules purged before initialising EESSI
Module for EESSI/2023.06 loaded successfully
EESSI has selected x86_64/amd/zen2 as the compatible CPU target for EESSI/2023.06
EESSI has selected accel/nvidia/cc80 as the compatible accelerator target for EESSI/2023.06
(for debug information when loading the EESSI module, set the environment variable EESSI_MODULE_DEBUG_INIT)
List loaded modules:
{EESSI/2023.06} [teop@vglogin0008 ~]$ module list
Output:
Currently Loaded Modules:
1) EESSI/2023.06
List available modules:
{EESSI 2023.06} [teop@vglogin0008 ~]$ module av
------------------ /cvmfs/software.eessi.io/versions/2025.06/software/linux/x86_64/amd/zen2/accel/nvidia/cc80/modules/all -------------------
CUDA/12.6.0 cuDNN/9.15.0.57-CUDA-12.9.1 (g,D)
CUDA/12.8.0 NCCL/2.22.3-GCCcore-13.3.0-CUDA-12.6.0 (g)
CUDA/12.9.1 (D) OSU-Micro-Benchmarks/7.5-gompi-2024a-CUDA-12.6.0 (g)
cuDNN/9.5.0.50-CUDA-12.6.0 (g) UCC-CUDA/1.3.0-GCCcore-13.3.0-CUDA-12.6.0 (g)
cuDNN/9.10.1.4-CUDA-12.8.0 (g) UCX-CUDA/1.16.0-GCCcore-13.3.0-CUDA-12.6.0 (g)
--------------------------- /cvmfs/software.eessi.io/versions/2025.06/software/linux/x86_64/amd/zen2/modules/all ----------------------------
Abseil/20240722.0-GCCcore-13.3.0 libpng/1.6.50-GCCcore-14.3.0 (D)
absl-py/2.1.0-GCCcore-13.3.0 libpsl/0.21.5-GCCcore-14.2.0
alsa-lib/1.2.14-GCCcore-14.3.0 libpsl/0.21.5-GCCcore-14.3.0 (D)
ant/1.10.12-Java-17 librsvg/2.60.0-GCCcore-13.3.0
AOCL-BLAS/5.0-GCC-14.2.0 librsvg/2.61.0-GCCcore-14.3.0 (D)
....
Leaving the environment:
{EESSI 2023.06} [teop@vglogin0008 ~]$ exit
logout
EESSI GPU support
NVIDIA Drivers are exposed for EESSI GPU support. Modules are tagged with 'gpu' and could be tested as:
{EESSI 2023.06} [teop@vglogin0008 ~]# module load CUDA-Samples
{EESSI 2023.06} [teop@vglogin0008 ~]# deviceQuery
deviceQuery Starting...
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "NVIDIA A100-PCIE-40GB"
CUDA Driver Version / Runtime Version 13.0 / 12.1
CUDA Capability Major/Minor version number: 8.0
Total amount of global memory: 40441 MBytes (42405855232 bytes)
(108) Multiprocessors, (064) CUDA Cores/MP: 6912 CUDA Cores
GPU Max Clock rate: 1410 MHz (1.41 GHz)
Memory Clock rate: 1215 Mhz
Memory Bus Width: 5120-bit
L2 Cache Size: 41943040 bytes
Maximum Texture Dimension Size (x,y,z) 1D=(131072), 2D=(131072, 65536), 3D=(16384, 16384, 16384)
Maximum Layered 1D Texture Size, (num) layers 1D=(32768), 2048 layers
Maximum Layered 2D Texture Size, (num) layers 2D=(32768, 32768), 2048 layers
Total amount of constant memory: 65536 bytes
Total amount of shared memory per block: 49152 bytes
Total shared memory per multiprocessor: 167936 bytes
Total number of registers available per block: 65536
Warp size: 32
Maximum number of threads per multiprocessor: 2048
Maximum number of threads per block: 1024
Max dimension size of a thread block (x,y,z): (1024, 1024, 64)
Max dimension size of a grid size (x,y,z): (2147483647, 65535, 65535)
Maximum memory pitch: 2147483647 bytes
Texture alignment: 512 bytes
Concurrent copy and kernel execution: Yes with 3 copy engine(s)
Run time limit on kernels: No
Integrated GPU sharing Host Memory: No
Support host page-locked memory mapping: Yes
Alignment requirement for Surfaces: Yes
Device has ECC support: Enabled
Device supports Unified Addressing (UVA): Yes
Device supports Managed Memory: Yes
Device supports Compute Preemption: Yes
Supports Cooperative Kernel Launch: Yes
Supports MultiDevice Co-op Kernel Launch: Yes
Device PCI Domain ID / Bus ID / location ID: 0 / 39 / 0
Compute Mode:
< Default (multiple host threads can use ::cudaSetDevice() with device simultaneously) >
deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 13.0, CUDA Runtime Version = 12.1, NumDevs = 1
Result = PASS
Leaving the environment:
{EESSI 2023.06} [teop@vglogin0008 ~]$ exit
logout
Project documentation: EESSI