Dalia Hardware Configuration
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Compute nodes
Dalia is a NVIDIA GB200 NVL72 supercomputer containing 64 NVIDIA GB200 GPUs.
This machine contains 18 nodes with the following configuration:
- 2 ARM Neoverse-v2 (CPU Grace) processors with 72 cores, i.e. 144 physical cores per node
- 1.7 TB of memory per node
- 4 NVIDIA GB200 HBM3e 192 GB GPUs per node
For more information, you can consult the NVIDIA GB200 NVL72 datasheet.
Unlike the compute nodes of Jean Zay, the compute nodes of Dalia can access the internet.
Login nodes
When you log in to Dalia, you arrive on a login node with the following configuration:
- 2 Intel Xeon Gold 6530 processors with 32 cores, i.e. 64 physical cores per node
- 256 GB of memory per node
The login nodes do not have the same architecture as the compute nodes. In particular, they have Intel CPUs, whereas the compute nodes are equipped with ARM CPUs. To compile and install your software environments, it is recommended to connect to a compute node (which can access the Internet) to automatically take into account the ARM architecture.
Network architecture
The network architecture is a non-blocking one-level Fat-Tree with InfiniBand technology.
Storage capacity
Dalia has a total storage capacity of 500 TB.
The storage solution provided is a DDN AI400X2 Turbo enclosure connected to a converged Ethernet network with eight 200 Gigabit Ethernet links. Each compute node is connected to this network with two 200 Gigabit Ethernet links.