SCRP's Second-Generation All-Flash Distributed Storage System

8 September 2023 - 8:00pm

Introducing scrp-data, our second generation all-flash distributed storage system. This new, custom-built system will provide four times the capacity and double the sustained throughout of our previous distributed file system, all contained within a 2U rackmount server. Once it is online, this new system will be one of the fastest installed among all academic HPC systems in Hong Kong.

Data Loss on scrp-data: Preliminary Incident Report

20 June 2023 - 10:00am

During the June 2023 maintenance,the cluster has suffered data loss on the distributed storage (/data and ~/large-data) due to software issues. This preliminary report detail what had happened and what we plan to do to avoid similar incidents in the future.

NVIDIA A100 Tensor Core GPU

3 December 2022 - 1:00am

The video version of this post is avaiable here.

Running Multiple RStudio environments on Jupyter

1 September 2022 - 2:00pm

Running RStudio within Jupyter has been possible for quite some time with jupyter-server-proxy. Doing so has its benefits, notably the ability to leverage JupyterHub’s systemdspawner to control the amount of resources users can use, a feature that is not available in the free version of RStudio.

AMD BLAS/LAPACK Optimization in 2022

7 February 2022 - 3:47pm

This is the first of a multi-part series on how to optimize linear algebra performance as of January 2022. We will go over how to optimize BLAS/LAPACK performance on AMD CPUs, focusing on R because it is most affected by this process. In Part 2, we will compare the performance of various software commonly used in economics.