A5007442246- Mathematical Approximation and Integration
- Distributed and Parallel Computing Systems
- Semiconductor materials and devices
- Advancements in Semiconductor Devices and Circuit Design
- Parallel Computing and Optimization Techniques
- Probabilistic and Robust Engineering Design
- Electron and X-Ray Spectroscopy Techniques
- Chaos-based Image/Signal Encryption
- Quantum and electron transport phenomena
- Scientific Research and Discoveries
- Semiconductor Quantum Structures and Devices
- Matrix Theory and Algorithms
- Mathematical functions and polynomials
- Advanced Chemical Physics Studies
- Big Data and Business Intelligence
- Advanced Numerical Analysis Techniques
- Genetic diversity and population structure
- Genomics and Phylogenetic Studies
- Stochastic processes and financial applications
- Nuclear reactor physics and engineering
- Scientific Computing and Data Management
- Wildlife Ecology and Conservation
- Cloud Computing and Resource Management
- Distributed systems and fault tolerance
- Atmospheric and Environmental Gas Dynamics
Institute of Information and Communication Technologies
2014-2024
Bulgarian Academy of Sciences
2010-2024
Ministry of Fisheries and Marine Resource Development
2020
Institute for Parallel Processing
1998-2012
Brooklyn College
2001-2002
City University of New York
2002
The Intel MIC architecture is one of the main processor architectures used for production computational accelerators. Increasing energy and cost-effciency accelerators important option building new HPC systems. However, effective use requires careful optimization on all stages algorithm appropriate parallelization approaches. In domain statistical methods quasi-Monte Carlo present distinct challenges when thousands cores are to be involved in a computation. this paper we describe detail...
Abstract Here, from macrophylogeographic mtDNA empirical data, we propose a scenario for the evolution and speciation of two important forest trees, European black pine Scotch pine, their multiple subspecies varieties. Molecular clock simulations revealed that INDEL variability in Pinus mitochondrial genome is relatively old, i.e., Pliocene-Miocene epoch, related to historical tectonic continental fluctuations rather than climate change at large geographic scale. For conservation management...
Trade-off between the cost-efficiency of powerful computational accelerators and increasing energy needed to perform numerical tasks can be tackled by implementation algorithms on Intel Multiple Integrated Cores (MIC) architecture. The best performance requires use appropriate optimization parallelization approaches throughout all process their design. Monte Carlo methods Quasi-Monte depend a huge number cores. In this paper we present advances in our studies for solving multidimensional...
Big data is a broad term with numerous dimensions, most notably: big characteristics, techniques, software systems, application domains, computing platforms, and milieu (industry, government, academia).In this paper we briefly introduce fundamental characteristics then present seven case studies of applications, as seen from academic perspective (industry government perspectives are not subject publication).While feel that it difficult, if at all possible, to encapsulate the important...
This paper studies generator sensitivity of some variance reduction Monte Carlo methods (MCMs) with acceptance‐rejection for approximate calculation multiple integrals. investigation is important basis the development grid application Sensitivity Analysis Environmental Systems in framework SEE‐GRID‐SCI project.Monte are among most widely used real simulations. These can be considered as computing an integral unit cube appropriate dimension, called constructive dimensionality method.Since its...
EU member states and the European commission realized importance of High Performance Computing (HPC) its applications in High- Data Analytics (HPDA) Artificial Intelligence (AI) provided substantial funding for buying hardware developing national competences area. The EuroCC project (https://www.eurocc-access.eu/) supported establishment National Competence Centres HPC/HPDA/AI, which serve as a focus point access to expertise know-how area foster collaboration Bulgaria tries maintain leading...
In this work we consider Monte Carlo methods and algorithms for solving quantum-kinetic integral equations which describe the electron transport in semiconductors. Here study scalability of presented using HPC resources South-Eastern Europe. Numerical results parallel efficiency computational cost are also presented. addition discuss coordinated use heterogeneous from one same application order to achieve a good performance.
Abstract The tightened energy requirements when designing state-of-the-art high performance computing systems lead to the increased use of computational accelerators. Intel introduced Many Integrated Core (MIC) architecture for their line accelerators and successfully competes with NVIDIA on basis price/performance ease development. Although some codes may be ported MIC without significant modifications, in order achieve optimal one has make best vector processing capabilities architecture....
In this work we consider the problem of reconstruction unknown density based on a given sample. We present method for which includes B-spline approximation, least squares and Monte Carlo computing integrals. The error analysis is provided. compared numerically with other statistical methods estimation shows very promising results.
The brown bear (Ursus arctos L.) is the most widespread in world. It can be found across Europe, Asia and North America habitats ranging from forests to dry deserts tundra. One of best natural bears Europe are located Bulgaria. They situated mountain massifs: Rhodopes, Balkan Mountains, Rila, Pirin, Vitosha. species a strictly protected Nature protection act declared areas for conservation its habitats. That why it important estimate population size how this changed country during years. In...
In short, the current status of HPC ecosystem in Bulgaria includes diverse modern hardware (including two supercomputers from TOP500 list – Discoverer and HEMUS, as well multiple clusters), extensive expertise adjacent fields. The competencies were acquired during a multitude successful EU projects, leadership participation high-profile national programmes projects with industry/SMEs. Experience negotiating managing contracts different sources funding for use both equipment has been...