Shrinvas P. Mahajan
Bio: Shrinvas P. Mahajan is an academic researcher from College of Engineering, Pune. The author has contributed to research in topics: Panchromatic film & Cache. The author has co-authored 1 publications.
TL;DR: DIM_OLY_SEL and DIM_DARK_PAT Policies are observed to be very effective policies for energy saving and chip temperature reduction and can be used effectively for safe chip multiprocessor functioning.
Abstract: For high computation, parallel and distributed processing chip multiprocessors are widely used. In chip multiprocessors, large on chip cache memories are used for performance improvement and speedy execution of the task. These cache memories consume 13% to 45% of the overall power consumed by the entire chip. As chip size shrinks with technology scaling, static energy consumed by the chip increases. This results in heating and chip malfunctioning. To solve this problem of we apply static energy reduction techniques to Last Level Cache (LLC) to reduce static energy consumption and thereby heating of the chip. Static energy reduction is achieved with two methods. 1. DIM_OLY_SEL Policy :- In this policy static Energy Reduction is achieved by dimming cache banks . 2. DIM_DARK_PAT Policy:- In this method, dimming as well as darkening techniques are used to save static energy and thereby temperature reduction With the implementation of DIM_OLY_SEL policy LLC Temperature Reduction up to 1.4 Kelvin, improvements in EDP (Energy Delay Product) gains up to 28 % and Leakage Energy Saving up to 23% is observed. With the implementation of DIM_DARK_PAT, we observed LLC temperature reduction up to 4.7 Kelvin, EDP gain improvement of 33 % and Leakage Energy Saving 23%. DIM_OLY_SEL and DIM_DARK_PAT Policies are observed to be very effective policies for energy saving and chip temperature reduction. Hence they can be used effectively for safe chip multiprocessor functioning.
11 Apr 2023
TL;DR: In this article , a Zigbee-based wireless S CADA system (ZBWS) is proposed for cost reduction in the industrial environment, which is ideal for industries where it is too expensive to install wired SCADA in remote locations.
Abstract: The advancement of the remote monitoring industry has become more level-playing in recent years. This means that companies can now monitor their equipment remotely, without having to be present onsite. With the introduction of wireless S CADA systems, these systems became more affordable and efficient. SCADA systems have advanced significantly in the field of process control in recent years. SCADA is a supervisory control that is very important in the automation industry. Today, SCADA is required to control the process from any distance. Additionally, the potential for additional features such as security, process parameter control, and visualization paves the way for SCADA to become a powerful tool for industrial applications. Using SCADA, the entire process area can be monitored remotely. Automatic process manipulation, warning system, and automatic report generation are huge advantages of SCADA. Wireless SCADA is ideal for industries where it is too expensive to install wired SCADA systems in remote locations. Fortunately, wireless SCADA systems offer all the benefits of wired systems without the expense and hassle of wiring everything. In this study, an innovative prototype of a Zigbee-based wireless S CADA system (ZBWS) is proposed for cost reduction.
08 Oct 2022
TL;DR: In this article , the authors proposed a technique to use cache banks to control the increase in chip temperature and achieved up to 29% energy savings and up to 5.3Kelvin LLC temperature reduction.
Abstract: As the need for high computing is ever-increasing, chip multiprocessors have emerged as a promising solution for parallel and distributed processing. The number of execution units are increasing on a single chip for concurrent operations. Though parallel processing gives the fast execution, it comes with the drawback of high leakage energy and thereby chip temperature increase.With technology scaling, this problem has become more severe and causes performance degradation and chip malfunctioning.It even challenges the reliability of chip functioning and its safety. Chip multiprocessors come along with large on-chip caches.In chip multiprocessors,cache memory consumes an average of 30% of the overall chip energy. When a chip multiprocessor is used for any application, all the cache banks are not used all the time. Banks that are not used by any processor can be utilized as thermal buffers to dissipate energy and reduce the temperature.The on-chip cache can be effectively used with the proper distribution of the workloads. We, in our research, propose a technique to use cache banks to control the increase in chip temperature. With this method, we achieved up to 29% energy savings and up to 5.3Kelvin LLC temperature reduction. Both the techniques effectively use Last Level Cache (LLC) to reduce temperature and save energy.
••01 Oct 2017
TL;DR: Fusion using DWT achieve an image with high spectral information but failed to provide spatial information and it has less sharpness in fused image, but using Curvelet transform the authors get a fused image withhigh spatial and spectral information with more sharpness.
Abstract: Multisensory Image fusion is the operation of combining complementary information from two or more source images into a single fused image. The fused image will supply supplementary information from source images and reduce the redundancy. Satellite image fusion is the process of fusion between high spectral but low resolution multispectral and low-spectral but high-resolution panchromatic images. Traditional fusion methods can't give the image with high spectral and spatial resolution. Fusion using DWT achieve an image with high spectral information but failed to provide spatial information and it has less sharpness in fused image. But using Curvelet transform we get a fused image with high spatial and spectral information with more sharpness.
18 Nov 2022
TL;DR: In this paper , a low-cost IoT based electric vehicle charging socket is developed, which will be very useful in developing a large network of electric vehicles charging station, and this model can be used as a small scale business if our home is near roads or highways.
Abstract: Interest in electric vehicles is increasing exponentially because of their large advantages over petrol and diesel engine vehicles as Electric vehicles doesn’t emit toxic gases and are eco-friendly as they run on electrically powered batteries and Electric vehicles are more efficient and they require very less maintenance. The only limitation with EV is that they require frequent charging for that we require a large network of EV charging system, so in this model we are developed a low-cost IoT based electric vehicle charging socket, which will be very useful in developing a large network of electric vehicles charging station, and this model can be used as a small-scale business if our home is near roads or highways.