Improved online algorithms for parallel job scheduling and strip packing
نویسندگان
چکیده
منابع مشابه
Improved online algorithms for parallel job scheduling and strip packing
We consider the online scheduling problem of parallel jobs on parallel machines, P |online − list,mj|Cmax. For this problem we present a 6.6623-competitive algorithm. This improves the best known 7-competitive algorithm for this problem. The presented algorithm also applies to the problem where machines are ordered on a line and only adjacent machines can be assigned to a job and, therefore, al...
متن کاملOnline Algorithm for Parallel Job Scheduling and Strip Packing
We consider the online scheduling problem of parallel jobs on parallel machines, P |online − list,mj |Cmax. For this problem we present a 6.6623-competitive algorithm. This improves the best known 7competitive algorithm for this problem. The presented algorithm also applies to the special case where machines are ordered on a line and only adjacent machines can be assigned to a job and, therefor...
متن کاملHybrid algorithms for Job shop Scheduling Problem with Lot streaming and A Parallel Assembly Stage
In this paper, a Job shop scheduling problem with a parallel assembly stage and Lot Streaming (LS) is considered for the first time in both machining and assembly stages. Lot Streaming technique is a process of splitting jobs into smaller sub-jobs such that successive operations can be overlapped. Hence, to solve job shop scheduling problem with a parallel assembly stage and lot streaming, deci...
متن کاملLNCS 7164 - Improved Lower Bound for Online Strip Packing
In the two-dimensional strip packing problem a number of rectangles have to be packed without rotation or overlap into a strip such that the height of the strip used is minimal. The width of the rectangles is bounded by 1 and the strip has width 1 and infinite height. We study the online version of this packing problem. In the online version the rectangles are given to the online algorithm one ...
متن کاملOnline algorithms with advice for bin packing and scheduling problems
We consider the setting of online computation with advice and study the bin packing problem and a number of scheduling problems. We show that it is possible, for any of these problems, to arbitrarily approach a competitive ratio of 1 with only a constant number of bits of advice per request. For the bin packing problem, we give an online algorithm with advice that is (1 + ε)competitive and uses...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Theoretical Computer Science
سال: 2011
ISSN: 0304-3975
DOI: 10.1016/j.tcs.2009.05.033