===== Chacha =====

==== Memory info ====
  * 1 TB total RAM
  * 8 GB Swap


==== CPU infos ====
  * INTEL(R) XEON(R) GOLD 6542Y
  * Frequency 2.9 GHz
  * Arch=x86_64
  * CoresPerSocket=24
  * CPUTot=96
  * Sockets=2 Boards=1
  * ThreadsPerCore=2

==== GPU infos ====
 
<code>
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.216.03             Driver Version: 535.216.03   CUDA Version: 12.2     |
|-----------------------------------------+----------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |         Memory-Usage | GPU-Util  Compute M. |
|                                         |                      |               MIG M. |
|=========================================+======================+======================|
|   0  NVIDIA H100 NVL                On  | 00000000:CA:00.0 Off |                    0 |
| N/A   29C    P0              63W / 400W |      0MiB / 95830MiB |      0%      Default |
|                                         |                      |             Disabled |
+-----------------------------------------+----------------------+----------------------+
|   1  NVIDIA H100 NVL                On  | 00000000:E1:00.0 Off |                    0 |
| N/A   30C    P0              60W / 400W |      0MiB / 95830MiB |      0%      Default |
|                                         |                      |             Disabled |
+-----------------------------------------+----------------------+----------------------+
                                                                                         
+---------------------------------------------------------------------------------------+
| Processes:                                                                            |
|  GPU   GI   CI        PID   Type   Process name                            GPU Memory |
|        ID   ID                                                             Usage      |
|=======================================================================================|
|  No running processes found                                                           |
+---------------------------------------------------------------------------------------+

</code>

**Shards :** maximum 96 shards of GPU for an H100


==== Storage ====


=== /data : ===

Read / Write performances :
<code>
Read :
Timing cached reads:   20386 MB in  2.00 seconds = 10205.98 MB/sec
Timing buffered disk reads: 6948 MB in  3.00 seconds = 2315.97 MB/sec

Write :
2147483648 bytes (2.1 GB, 2.0 GiB) copied, 1.77695 s, 1.2 GB/s
</code>

=== Capacity : ===

To be discussed on each project integration
==== SLURM configuration ====

When you run jobs on Chacha, you need to specify the partition (no defaults for now) :

  #SBATCH --partition=Chacha

==== Access ====

Chacha is at chacha.hevs.ch

See [[infra:compute|The ISC Computational Center]] for details about requesting access.