HPC Systems and Services

Six barley cultivars were grown in locations of Osijek and Nova Gradiska for three successive years. Our study included cultivars of different seasonal type. Zlatko, Barun and Vanessa are two-rowed winter type and Fran, Matej and Scarlett are spring barley cultivars. The results of grain yield and cytolytic degradation showed significant differences among cultivars of winter and spring type as well as specific interactions between cultivars and environmental conditions. Cultivars Zlatko and Barun showed significantly (P≤0.05) higher grain yield in comparison with other cultivars. Generally, spring barley cultivars when compared with winter cultivars had significantly higher malt extract content, lower malt extract fine-coarse difference, lower malt viscosity, higher β-glucanase activity and lower malt β-glucan content, higher friability together with specific interactions with growing conditions.

This work presents simple wireless WiFi accessible web server with web interface that provides control of different types of systems connected on embedded system. Wireless control is created on software platform provided by Altium with modified OpenBSD driver framework. Web server is created on the top of the lwIP which is simplified implementation of TCP/IP protocol suitable for embedded systems. Represented embedded system, implemented in FPGA of development system NanoBoard 3000, provides wireless connection through IEEE 802.11 standard. As example of possible uses we created PWM control interface for controlling rotation speed and direction of DC electric motor. This work describes control principles, hardware and software solutions for embedded system realization.

Performance tuning of scientific codes often requires tuning many different aspects like vectorization, OpenMP synchronization, MPI communication, load balancing. The Periscope Tuning Framework (PTF), an online automatic tuning framework, relies on a flexible plugin mechanism providing tuning plugins for different tuning aspects. Coming so far would not be possible without people who were there at right moments of my life. They provided me with support, love, and guidance. First of all, I wish to thank my supervisor, Prof. Dr. Michael Gerndt, for his guidance, the advice, support, and remarkable patience he gave me throughout my PhD. Without his guidance and the chance he gave me by working at the chair this work would not be possible. His humbleness combined with exceptional intellectual power and immense knowledge was always a great motivation to continue my work. Besides my supervisor, I would also like to tank my second supervisor, Prof. Dr. Siegfried Benkner, for accepting to review my thesis and giving insightful comments and suggestions. Moreover, I would also like to thank Prof. Dr. Arndt Bode, the leader of the Chair of Computer Architecture (LRR) at Technische Universität München for the great working environment he created and the funding support in the final part of my work. I would also like to thank my office colleague, Isaías Alberto Comprés Ureña, and Andreas Wilhelm for interesting discussions. Furthermore, I would like to express my gratefulness to my friends and colleagues at LRR for great moments I had on the chair. Also, I would like to express the deepest gratitude to Elvira and Stjepan Vrečko for interesting moments of practicing math and the support. Last but not least, I wish to thank my family for all the support, encouragement, sacrifices, and patience. Thank you all.

The main abiotic stresses which appear in soybean production are described in this paper. Abiotic stresses include extreme weather conditions (extremes in temperature, excesses in humidity or in drought), then stress because of deficiencies, excesses or imbalances of soil nutrients, excess pesticides, and mechanical or other injuries. The severity and type of injury of the soybean plant varies depending on the genotype, plant growth stage, the time interval of disturbance, and the plant part involved.