ZRLMPI principle (copyright IEEE)

ZRLMPI: A Unified Programming Model for Reconfigurable Heterogeneous Computing Clusters

How can a unified programming model for heterogeneous CPU + FPGA clusters look like? Find out in my recent paper about ZRLMPI: A Unified Programming Model for Reconfigurable Heterogeneous Computing Clusters (DOI: 10.1109/FCCM48280.2020.00051). Published in the Proceedings of the 2020 IEEE 28th Annual International Symposium on Field-Programmable Custom Computing Machines (FCCM). Abstract Over the past two decades, the Message Passing Interface (MPI) has evolved as the de-facto standard for programming High-Performance Computing (HPC) clusters.

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RPLS Reverse Engineering

Recover video recordings from Panasonic DVR based on MEIHDFS, BDAV, and RPLS

Therefore, go home to your villages and repair the IT of your families! (Jesus, never) Despite all circumstances, I managed to visit my family this Christmas. And to some extend, it is tradition that I use some of the time at home to repair/update/replace some IT devices of my family. This year however, I had a special challenge: Copy the recordings of the family camcorder, that were transferred to the external HDD of a Panasonic DVR to a usual PC.

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OpenSuse Tumbleweed

HowTo build Displaylink driver for OpenSuse Tumbleweed with latest kernel

New laptop, new dock, latest software…great, isn’t it? I always like those “fresh starts” with new hardware and a new setup. Not only because you have cool new hardware, but also, because it’s a possibility to cut off old pigtails. And, you then have best performance and security with latest software… Well, if there wouldn’t be commercial software for hardware drivers. Preamble / The source of the Problem: DisplayLink With my new ThinkPad, I’m using a USB-C dock and therefore planned to connect my external monitors to this dock.

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LOAD Tipps

Sicheres Home Office – Nicht nur während Corona

Plötzlich Home Office! Um der Corona-Krise Herr zu werden, motivieren offizielle Stellen permanent die Bevölkerung zu Hause zu arbeiten, wenn es denn möglich ist. Home Office ist auch ohne Krise eine Herausforderung und bedarf einiger Gewöhnung, bevor man die damit verbundenen Vorteile ausnutzen kann. Jetzt aber plötzlich alle auf einmal! Über die damit einhergehenden Herausforderungen für die IT-Sicherheit, wurde schon viel geschrieben u.a. [1 – 4]. Dieser Beitrag ist zuerst auf load-ev.

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Bourne Again SHell

SOCKS proxy using ssh (with i3 integration)

From time to time, thanks to geoblocking or IP address based authorization, you need to access websites through a proxy. If you have access to a machine that would have the right address range or region, an easy and straightforward way is to use ssh: $ ssh -N -D 8180 <desired_machine> & i3 integration If you need this proxy more frequently and you want to have the status of the proxy connection displayed in your i3-status line (from the window manager i3wm), then you can integrate the proxy with the following scripts:

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Bourne Again SHell

Search files with grep

In a programmers live, you need a recursive file search nearly every day. Of course, this is possible without a heavy IDE and with a simple but useful bash one liner: $ grep "pattern" -HniR ./path/to/dir The options in detail: H printing the filename of the match n print also the line number i for a case *in*sensitive search R for recursive Of course, this can also be combined with grep regular expressions.

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cloudFPGA poster

System Architecture for Network-Attached FPGAs in the Cloud using Partial Reconfiguration

How to configure and manage zillions of Cloud FPGAs? Find out in my recent paper about System Architecture for Network-Attached FPGAs in the Cloud using Partial Reconfiguration (DOI: 10.1109/fpl.2019.00054). Published in the Proceedings of the 29th International Conference on Field Programmable Logic and Applications (FPL). Abstract Emerging applications such as deep neural networks, bioinformatics or video encoding impose a high computing pressure on the Cloud. Reconfigurable technologies like Field-Programmable Gate Arrays (FPGAs) can handle such compute-intensive workloads in an efficient and performant way.

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Signal Logo

HowTo build Signal Desktop on OpenSuse/Fedora/CentOS

I use, among others, the Signal App as messenger. Of course, I also want to use the advantages of running a client also on my OpenSuse-based Laptop. Sadly, Open Whisper Systems does only provide packages for Ubuntu-based systems…so I need to build it by myself. Following the build instructions for developers, the build will fail due to some incompatibilities in the dependencies (see e.g. here). Due to permanent updates of the app, I’ve to rebuild it once in a while…and here is how:

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Vivaldi Browser

Get H.264/MP4 codecs to work in Vivaldi Browser

I’m a happy user of the Vivaldi Browser. But every time after an upgrade, H.264 videos stop working and every time I search and try quite a while to get it working again…maybe because the solution is always to obvious. So, now I write it down in the hope of remembering it next time ;). 1) The easy (to obvious) option Execute vivaldi in a comand line! The output is something like:

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Bourne Again SHell

Add headers recursive on top of each code file

In various situations during the work on a project, it could happen that one is required to add a header to a lot of source code files. Since programmers are usually lazy — eh, interested to work efficiently — they won’t open every file and copy it manually. Once again, the Bash can help us. For example, a copyright notice in all C/C++ files: find . -name \*.{c,cpp,h,hpp} | xargs sed -i "1i/*Copyright .

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