Karthik Gopalakrishnan

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High-performance systems are undergoing a major shift as commodity multi-core systems become increasingly prevalent. As the number of processes per compute node increase, the other parts of the system must also scale appropriately to maintain a balanced system. In the area of high-performance computing, one very important element of the overall system is(More)
—Large scale compute clusters continue to grow to ever-increasing proportions. However, as clusters and applications continue to grow, the Mean Time Between Failures (MTBF) has reduced from days to hours. As a result, fault tolerance within the cluster has become imperative. MPI, the de-facto standard for parallel programming, is widely used on such large(More)
—Clusters and applications continue to grow in size while their mean time between failure (MTBF) is getting smaller. Checkpoint/Restart is becoming increasingly important for large scale parallel jobs. However, the performance of the Checkpoint/Restart mechanism does not scale well with increasing job size due to constraints within the file system.(More)
— The air transportation system is a network of many interacting, capacity-constrained elements. When the demand for airport and airspace resources exceed the available capacities of these resources, delays occur. The state of the air transportation system at any time can be represented as a weighted directed graph in which the nodes correspond to airports,(More)
PURPOSE This study is conducted to investigate the feasibility of echographic imaging of tissue thickness of healthy and reconstructed cleft lip. DESIGN Prospective study. MATERIALS AND METHODS The study was conducted in SDM Craniofacial Unit, Dharwad and was approved by Local Institutional Review Board. A total of 30 patients, age group ranging from 4(More)
—Online social networking sites such as Facebook, Twitter and Flickr are among the most popular sites on the Web, providing platforms for sharing information and interacting with a large number of people. The different ways for users to interact, such as liking, retweeting and favoriting user-generated content, are among the defining and extremely popular(More)
Online social networking sites such as Facebook, Twitter and Flickr are among the most popular sites on the Web, providing platforms for sharing information and interacting with a large number of people. The different ways for users to interact, such as liking, retweeting and favoriting user-generated content, are among the defining and extremely popular(More)