
dr inż. Krzysztof Ocetkiewicz
Employment
- Projektant systemów informatycznych at Dział Usług Chmurowych
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Contact
- krzocetk@pg.edu.pl
Projektant systemów informatycznych
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- Gmach Elektroniki Telekomunikacji i Informatyki pokój 253
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- (58) 347 22 64
Publication showcase
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A FPTAS for minimizing total completion time in a single machine time-dependent scheduling problem
In this paper a single machine time-dependent scheduling problem with total completion time criterion is considered. There are given n jobs J1,…,Jn and the processing time pi of the ith job is given by pi=a+bisi, where si is the starting time of the ith job (i=1,…,n),bi is its deterioration rate and a is the common base processing time. If all jobs have deterioration rates different and not smaller than a certain constant u>0,...
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Optimization of parallel implementation of UNRES package for coarse‐grained simulations to treat large proteins
We report major algorithmic improvements of the UNRES package for physics-based coarse-grained simulations of proteins. These include (i) introduction of interaction lists to optimize computations, (ii) transforming the inertia matrix to a pentadiagonal form to reduce computing and memory requirements, (iii) removing explicit angles and dihedral angles from energy expressions and recoding the most time-consuming energy/force terms...
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On the independence number of some strong products of cycle-powers
In the paper we give some theoretical and computational results on the third strong power of cycle-powers, for example, we have found the independence numbers alpha((C^2_10)^⊠3) = 30 and alpha((C^4 _14)^⊠3) = 14. A number of optimizations have been introduced to improve the running time of our exhaustive algorithm used to establish the independence number of the third strong power of cycle-powers. Moreover, our results establish...
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