ODE SpaceCloud® OS v1.0.1  release notes

v1.0.1 – August  11, 2020

This is the first point update release of the Unibap SpaceCloud® Services (USS) Operating System (SpaceCloud® OS). Version 1.0.1 add OpenCL 1.2 and more performance through additional GPU accelerated libraries. This release is the baseline for the ongoing development of the SpaceCloud® API framework for orchestration of Applications in space with Unibap’s features SafetyChip and SafetyBoot. Both SpaceCloud® API and SafetyChip/SafetyBoot is developed with support from the European Space Agency.

SpaceCloud® OS version 1.0.1 for the ODE contain the following updates from v1.0.0:

• Stand alone disk image release that replaces v1.0.0.
• Expandable 55 GB btrfs core filesystem (to fit onto eMMC, sd-cards, SSD drives, USB thumb drives etc). Use gparted live cd to expand it to your drive size.
• Based on Ubuntu server 18.04.4  Long Term Support (LTS), AMD64  with Unibap package control and kernel drivers.
• Upgraded to Linux kernel 5.4.52-generic. Low latency version available from Unibap APT repository.
• Upgraded to MESA 20.1.4 with OpenCL 1.2 support (no OCL image support)
• Upgraded libclc to support OpenCL printf
• Added OpenCL C++ headers
• Added OpenCL accelerated SPARSE linear algebra library (clSPARSE) with tests
• Added Halide image processing language with GPU support
• Upgraded clpeak to also benchmark GPU Integer compute Fast 24bit.
•  Upgraded OpenCV to 4.1.2+dfsg-7 with Qt, python2, python3, AMD clBLAS, AMD clFFT support
• Added optimized Intel MKL BLAS (cpu with AVX instructions)
• Added flashrom utility for BIOS upgrade (optional to Unibap Coreboot ODE BIOS version 4.8.1)
• Upgrading Unibap quality assurance test package to version 0.0.6
• Added nload utility for network traffic monitoring

Included since v1.0.0

• Default US English language
• Default US international keyboard setting
• Default UTC/ZULU time
• Support for user configurable AMD GPU dynamic power module (DPM) interface
• Enabled background ECC/EDAC AMD SOC RAM memory scrubbing at default 97650 bytes per second
• PCI bus parity ECC enabled
• User access to Unibap management tool (unibap-programmer)
• User access to Unibap health monitoring tools
• Support for hardware encoding/decoding of up to two Full HD, 1920×1080 pixel H.264 video (using libva and gstreamer)
• Perf support using AMD Model Specific Registers (MSR) used for debugging, program execution tracing, computer performance monitoring, and toggling certain CPU feature
• CPU mitigations default turned off in  bootloader for higher performance
• Latest official LLVM, version 10.0.1 and Mesa 20.1.1 for maximum AMD compute support in OpenCL and assembler.
• OpenGL 4.6 compatible
• OpenGL ES 3.2 compatible
• Vulkan 1.2 compatible
• GPU Compute library support for Fast Fourier Transforms (FFT, AMD clFFT)
• GPU Compute library support for Basic Linear Algebra Subprograms (BLAS, AMD clBLAS and clBlast)
• CPU and GPU (OpenCL) support for Machine Learning using Tensor Flow/TensorFlow lite
• CPU support for Machine Learning using  pyTorch.
• CPU and GPU acceleration of libgpuarray
• Example source code for CPU and GPU accelerated TensorFlow lite inference
• Example source code for CPU accelerated pyTorch inference
• Approximately 230 MB RAM with X-server (GUI) running at boot and 180 MB RAM without X-server (GUI)

Benchmarks and conformance

The system performance is the same as release v1.0.0.

Conformance of v1.0.1 OpenCL

OpenCL conformance is done using OpenCL CTS and piglit.

[708/708] skip: 13, pass: 689, fail: 6
Thank you for running Piglit!

The piglit conformance report in HTML format can be downloaded here.

clpeak openCL profiling benchmark

Transfer bandwidth (GBPS)

enqueueWriteBuffer : 2.81

enqueueReadBuffer : 2.86

enqueueWriteBuffer non-blocking : 2.81

enqueueReadBuffer non-blocking : 2.86

enqueueMapBuffer(for read) : 2829-13

memcpy from mapped ptr : 2.86

enqueueUnmap(after write) : 2860.81

memcpy to mapped ptr : 2.81

Kernel launch latency : 483.15 us

Core package summary table

Optimized packages: