Citation
For more information about citations of OSC, visit https://www.osc.edu/citation.
To cite Ascend, please use the following Archival Resource Key:
ark:/19495/hpc3ww9d
Please adjust this citation to fit the citation style guidelines required.
Ohio Supercomputer Center. 2022. Ascend Supercomputer. Columbus, OH: Ohio Supercomputer Center. http://osc.edu/ark:/19495/hpc3ww9d
Here is the citation in BibTeX format:
amdblis
AMDBLIS is a portable, open-source software framework for instantiating high-performance Basic Linear Algebra Subprograms (BLAS), such as dense linear algebra libraries. The framework was designed to isolate essential kernels of computation that, when optimized, immediately enable optimized implementations of most of the commonly used and computationally-intensive operations.
Availability and Restrictions
Versions
amdblis is available on the Ascend Cluster. The versions currently available at OSC are:
nvhpc
NVHPC, or NVIDIA HPC SDK, C, C++, and Fortran compilers support GPU acceleration of HPC modeling and simulation applications with standard C++ and Fortran, OpenACC® directives, and CUDA®. GPU-accelerated math libraries maximize performance on common HPC algorithms, and optimized communications libraries enable standards-based multi-GPU and scalable systems programming. Performance profiling and debugging tools simplify porting and optimization of HPC applications, and containerization tools enable easy deployment on-premises or in the cloud.
System Downtime December 13, 2022
aocc
The AMD Optimizing C/C++ and Fortran Compilers (“AOCC”) are a set of production compilers optimized for software performance when running on AMD host processors using the AMD “Zen” core architecture. Supported processor families are AMD EPYC™, AMD Ryzen™, and AMD Ryzen™ Threadripper™ processors. The AOCC compiler environment simplifies and accelerates development and tuning for x86 applications built with C, C++, and Fortran languages.
Ascend SSH key fingerprints
These are the public key fingerprints for Ascend:
ascend: ssh_host_rsa_key.pub = 2f:ad:ee:99:5a:f4:7f:0d:58:8f:d1:70:9d:e4:f4:16
ascend: ssh_host_ed25519_key.pub = 6b:0e:f1:fb:10:da:8c:0b:36:12:04:57:2b:2c:2b:4d
ascend: ssh_host_ecdsa_key.pub = f4:6f:b5:d2:fa:96:02:73:9a:40:5e:cf:ad:6d:19:e5
nccl
The NVIDIA Collective Communication Library (NCCL) implements multi-GPU and multi-node communication primitives optimized for NVIDIA GPUs and Networking. NCCL provides routines such as all-gather, all-reduce, broadcast, reduce, reduce-scatter as well as point-to-point send and receive that are optimized to achieve high bandwidth and low latency over PCIe and NVLink high-speed interconnects within a node and over NVIDIA Mellanox Network across nodes.
Ascend Programming Environment
Compilers
C, C++ and Fortran are supported on the Ascend cluster. Intel, oneAPI, GNU, nvhpc, and aocc compiler suites are available. The Intel development tool chain is loaded by default. Compiler commands and recommended options for serial programs are listed in the table below. See also our compilation guide.
Migrating jobs from other clusters
This page includes a summary of differences to keep in mind when migrating jobs from other clusters to Ascend.
Guidance for Pitzer Users
Hardware Specifications
Ascend (PER NODE) | Pitzer (PER NODE) | ||
---|---|---|---|
Regular compute node | n/a |
40 cores and 192GB of RAM 48 cores and 192GB of RAM |