Institute of Information and Communication Technologies – Bulgarian Academy of Sciences

 1113 – Sofia, Acad. G. Bonchev str., block 25A

Institute site

(02) 979 6611, (02) 870 8494


IICT-BAS conducts fundamental and applied research in the field of computer science, information and communication technologies (ICT). The Institute’s scientific themes are aligned with the European research programs Horizon 2020 and the 7th Framework Program as well as with NATO’s research programs. The research conducted in the Institute is focused on such advanced trends in ICT as advanced computing, intelligent interfaces, intelligent control and optimization, as well as Big Data analytics. The developed methods, algorithms, models and systems are applied to solve a wide class of large-scale problems in such problem areas as physics, environmental protection, finance, prediction, decision making, strategic planning, transport systems, robotics etc.

The total number of scientific publications for the period 2014-2018 is 1370. Among them 852 (62.2%) are referred and indexed in the world system for referring, indexing and evaluating, 381 are published in journals with a Web of Science Impact Factor (IF) or a SCOPUS SJR rank, and 24 are monographs, scientific books or book chapters. The lists of publications as well as additional information for citations are available at the IICT web site ( as part of the Annual Reports for 2014-2018.

IICT-BAS is a desirable partner for conducting research in the framework of various international projects, with 26 projects only under the 7th Framework Program. The Institute participates in a large number of projects at national level supported by governmental institutions and the National Fund for Scientific Research of Bulgaria.

The backbone of the Bulgarian Research and Education Network, which is part of the GÉANT 3 optical ring linking the European research and academic networks, is located at IICT-BAS. IICT-BAS is also a National Center for High Performance and Distributed Computing. Currently, IICT maintains two multifunctional computing systems: AVITOTHOL and a high performance cluster. AVITHOHOL is the only Bulgarian supercomputer connected in the European PRACE infrastructure.

AVITHOHOL consists of 150 HP SL250s Gen8 servers, equipped with two Intel Xeon CPU-E5-2650-v2 processors and two Intel Xeon Phi 7120P coprocessors, 64GB RAM, two 500GB hard drives connected to each other with an unbreakable FDR InfiniBand at a speed of 56 Gbps. The total number of cores is 20,700 and the total RAM is 9600 GB. The servers are located in 4 double MC MCS 200 racks that have water cooling and can deliver up to 50 kW cabinet/rack power. One central rack contains a large number of storage devices, control servers and central communication switches. The theoretical peak performance of the system is estimated to be 412.3 TFLOPS in double precision, and the real achievement, according to the LINPACK tests, is 264.2 TFLOPS. At its launch, the AVITHOOL system is ranked 389th, according to the list of the 500 most powerful supercomputers in the world T0P500 (November 2015).

The second computing system in IICT is a high performance cluster (installed in 2011) with 132 TB disk space, 36 blades (576 CPU cores in total), 2 servers with 16 NVIDIA Tesla M2090 cards (8192 GPU cores), 8 Intel Xeon Phi 5110P co-processors (480 cores). The connectivity of the computing system is accomplished with InfiniBand switches to achieve low latency, with the overall theoretical performance being 21.93 TFLOPS with double precision.

In IICT-BAS is build a unique for Southeast Europe laboratory,  equipped with an industrial computer tomograph, a 3D scanner and printer, an infrared camera, a fast camera, a laser particle sizer, etc.