IBM provides Linux server Power8 chips with Nvidia NVLink




IBM has Power LC-line systems extended with three servers. One of them is IBM’s Power8 processors with NVLink interconnects, for the connection to P100 Tesla accelerators. The servers are more intended for deep learning and artificial intelligence.

The three new systems are the S822LC Power System for High Performance Computing, the Power System S822LC for Big Data and System S821LC. The most powerful of the bunch is the S822LC Power System for High Performance Computing. IBM provides these two Power8 chips: two decacores on 2,86GHz or duo octacores on 3,25GHz.

The processors are combined with up to four NVIDIA Tesla accelerators P100 with Pascal GPUs, which are incorporated into the systems in a SMX2 form factor. The processors communicate via Nvidia’s NVLink interconnect with the accelerators, which workloads can be shared with a bandwidth of 80GB / s. The P100 cards are also mutually connected with NVLink for the reciprocal sharing of parallel computation.

The Tesla cards can quickly access the system memory by the NVLink and also feature 16GB hbm2 memory that offers a bandwidth of 720GB / s. The Power8 chips have a 115GB / s line to the DDR4 and systems support 500GB memory per socket.

The Power System S822LC for Big Data does not have NVLink and can be equipped with two Nvidia K80 graphics cards, in combination with two Power8 processors and up to 1TB of memory. The regular S822LC system must do it with up to 512GB DDR4 and a single Tesla K80. IBM Power LC rest all servers with Ubuntu 16.04 and focuses itself on the use of HPC systems analysis, big data, deep learning and artificial intelligence.


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