Abrameshin D., Ivliev N., Evdokimova V. et al. Electronics (MDPI). 2022.
Launched in March 2021, the 3U CubeSat nanosatellite was the first ever to use an ultra-lightweight harmonic diffractive lens for Earth remote sensing. We describe the CubeSat platform we used; our 10 mm diameter and 70 mm focal length lens synthesis, design, and manufacturing; a custom 3D-printed camera housing built from a zero-thermal-expansion metal alloy; and the on-Earth image post-processing with a convolutional neural network resulting in images comparable in quality to classical refractive optics used for remote sensing before.
This paper is devoted to the monitoring system HPC TaskMaster developed at the HSE University for the cHARISMa cluster. This system automatically evaluates the efficiency of performing tasks of HPC cluster users and identifies inefficient tasks, thereby significantly saving expensive machine time. In addition, users can view reports on completing their tasks, along with inferences about their work and interactive graphs. Particular attention in this paper is paid to determining the effectiveness of the task - the system allows the administrator to personally configure the criteria for evaluating the effectiveness of the task without the need for changes in the source code. The system is developed using open-source software and is publicly available for use on other clusters.