We propose a low-overhead logging scheme for the distributed shared memory system based on the lazy release consistent memory model. In the proposed scheme, stable logging is performed when a lock grant causes an actual dependency relation between the processes, which significantly reduces the logging frequency. Also, instead of making a stable log of the accessed data items, a process logs sta...

shear and compressional wave velocities along with other petrophysical logs, are considered as upmost important data for hydrocarbon reservoirs characterization. shear wave velocity (vs) in well logging is commonly measured by some sort of dipole logging tools, which are able to acquire shear waves as well as compressional waves such as sonic scanner, dsi (dipole shear sonic imager) by schlumbe...

The Accurate measurement and analysis of pH data is necessary for a multitude of applications ranging from agriculture sector to clinical laboratories. Preferably an inexpensive hand-held unit is needed for these applications. This paper presents the sensor data acquisition and data logging system including the details of its construction, capabilities and applications. PIC microcontroller has ...

As software Distributed Shared Memory(DSM) systems become attractive on larger clusters, the focus of attention moves toward improving the reliability of systems. In this paper, we propose a lightweight logging scheme, called remote logging, and a recovery protocol for home-based DSM. Remote logging stores coherence-related data to the volatile memory of a remote node. The logging overhead can ...

Three zero-order swales, each with a contributing drainage area of about 1 ha, were instrumented to measure pipeflows within the Caspar Creek Experimental Watershed in northwestern California, USA. After two winters of data collection, the second-growth forest on two of the swales was clearcut logged. The third swale remained as an uncut control. After logging, peak pipeflow was about 3.7 times...

We propose a low-overhead logging scheme for the distributed shared memory system based on the lazy release consistent memory model. In the proposed scheme, stable logging is performed when a lock grant causes an actual dependency relation between the processes, which significantly reduces the logging frequency. Also, instead of making a stable log of the accessed data items, a process logs sta...

Disk logging is a fundamental building block for faulttolerance system design because it captures a persistent snapshot of critical system state for subsequent recovery in the occurrence of failures. Logging typically is required to be synchronous to ensure absolute recoverability. Therefore speeding up synchronous disk write is critical to those fault tolerance systems that are based on disk l...