Full virtualization of the IA32 architecture can be achieved using hardware support. The L4 microkernel has been extended with mechanisms to leverage Intel’s VT-x technology. This work proposes a user level virtual machine monitor that complements L4’s virtualization extensions and realizes microkernel-based full virtualization of arbitrary operating systems. A prototype implementation within t...

In the context of High-Luminosity (HL) upgrade LHC, many custom ATCA electronics boards are being designed containing heterogeneous System-on-Chip (SoC) devices, more specifically Xilinx Zynq UltraScale+ (ZUS+) family. While application varies greatly, these devices regularly used for performing board management tasks, making them a fundamental element in correct operation board. The large numb...

In this paper, we present a detector-pyramid architecture for real-time multi-view face detection. Using a coarse to fine strategy, the full view is partitioned into finer and finer views. Each face detector in the pyramid detects faces of its respective view range. Its training is performed by using a new meta booting learning algorithm. This results in the first real-time multi-view face dete...

NAND flash memory-based embedded systems are becoming increasingly common. These embedded systems have to provide a fast boot time. In this paper, we have designed and proposed a flash file system for embedded systems that require fast booting. By using a Flash Image Area, which keeps the latest flash memory information such as types and status of all blocks, the file system mounting time can b...

This paper describes a methodology for implementing disk-less cluster systems using the Network File System (NFS) that scales to thousands of nodes. This method has been successfully deployed and is currently in use on several production systems at Sandia National Labs. This paper will outline our methodology and implementation, discuss hardware and software considerations in detail and present...

In southeastern regions of the US, herbage systems are primarily based on grazing or hay feeding with low nutritive value warm-season perennial grasses. Nutritious herbage such as annual ryegrass (Lolium multiflorum Lam.) may be more suitable for preserving as baleage for winter feeding even with more intensive production inputs. Emerging in-line wrapped baleage storage systems featuring rapid ...

The study of greenhouse gas emissions has become a global focus, but few studies have considered saline-alkali paddy fields. Gas samples and saline-alkali soil samples were collected during the green, tillering, booting, heading and grain filling stages. The emission fluxes of CO2, CH4, and N2O as well as the pH, soil soluble salt, available nitrogen, and soil organic carbon contents were detec...

Booting” and “flushing” are terms used to describe an injecting behaviour in which the plunger is pulled back and the fluid (mostly blood and perhaps blood only) is re-injected. The behaviour differs from “registering,” which occurs before the drug is injected. Booting/flushing can produce subcutaneous and venous damage, and increases the risk for the spread of blood-borne viruses when used equ...

One of the key metrics of performance in infrastructure cloud is the speed of provisioning a virtual machine (or a virtual appliance) on request. A VM is instantiated from an image file stored in the image repository. Since the image files are large, often GigaBytes in size, transfer of the file from repository to a compute node running the hypervisor can take time in order of minutes. In addit...