several other experimental systems [13, 39, 4, 17, 6]. At first blush, it might appear that gang scheduling is a luxury that may not be worth the price. An optimal packing of gangs that gives minimal wasted processors is an NPcomplete problem. Migration of gangs might be required to compensate for a poor initial mapping. The code to simultaneously schedule all the threads of each gang might be ...

dust is a common atmospheric phenomenon in iran especially in central arid regions.  this severely affects environment as well as resident’s health. among the results of this phenomenon are respiratory diseases, bash radiation, accelerated soil erosion, desertification and degradation of ecosystems. some dusts are originated from local desert conditions but adjacency to neighboring countries de...

Two different approaches have been commonly used to address problems associated with space sharing scheduling strategies: (a) augmenting space sharing with backfilling, which performs out of order job scheduling; and (b) augmenting space sharing with time sharing, using a technique called coscheduling or gang scheduling. With three important experimental results – impact of priority queue order...

We have implemented an experimental gang sched-uler on Cenju-3/DEE1] in order to investigate ef-cient scheduling schemes for multiple user environment with high performance communication on parallel machines. The Cenju-3/DE system provides user-level inter-processor communication mechanisms for a single user. It realizes high performance communication, but cannot be shared among multiple users....

The very existence and purpose of street gangs is predicated on having an external threat or enemy. It is also recognized that gangs form allies as well as rivals with other gangs. The fact that gangs are embedded in an intricate structure of both positive (ally) and negative (rivalry) relationships has rarely been explored in terms of understanding the levels and the patterns of gang violence....

We study the problem of automatically finding gang member profiles on Twitter. We outline a process to curate one of the largest sets of verifiable gang member profiles that has ever been studied. A review of these profiles establishes differences in the language, images, YouTube links, and emoji features gang members use compared to the rest of the Twitter population. We generate word embeddin...

Gang scheduling is an approach for resource allocation in parallel and distributed systems that combines time-sharing with space-sharing to ensure a short response time for interactive tasks and high overall system throughput. In this paper, we present queueing theoretic models for a particular gang scheduling system under a workload representative of large-scale engineering and scientiic compu...

Gang scheduling is currently the most popular scheduling scheme for parallel processing in a time shared environment. In this paper we first describe the ideas of job re-packing and workload tree for efficiently allocating resources to enhance the performance of gang scheduling. We then present some experimental results obtained by implementing four different resource allocation schemes. These ...

1 Corrections Management Quarterly, 2001, 5(1), 1–9 © 2001 Aspen Publishers, Inc. A persistently disruptive force in correctional facilities is prison gangs. Prison gangs disrupt correctional programming, threaten the safety of inmates and staff, and erode institutional quality of life. The authors review the history of, and correctional mechanisms to cope with prison gangs. A suppression strat...