Sökning: "Numa"

Visar resultat 11 - 15 av 20 avhandlingar innehållade ordet Numa.

1. 11. Nuclear envelope protein interaction studies

   Författare :Mohammed Hakim Jaffer Ali; Einar Hallberg; Anki Östlund-Farrants; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Samp1; Nuclear envelope; protein interactions; chemical crosslinking; proteomics; neurokemi med molekylär neurobiologi; Neurochemistry with Molecular Neurobiology;

   Sammanfattning : The nuclear envelope (NE) separating the nucleoplasm from cytoplasm consists of two concentric lipid membranes, the outer (ONM) and inner (INM) nuclear membranes, the nuclear pore complexes (NPCs) and an underlying nuclear lamina network. The INM contains more than 100 unique transmembrane proteins of which only a few have been characterized. LÄS MER

3. 12. Methods for Creating and Exploiting Data Locality

   Författare :Dan Wallin; Erik Hagersten; Sverker Holmgren; David Wood; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; data locality; temporal locality; spatial locality; prefetching; cache; cache behavior; cache coherence; snooping protocols; partial differential equation; shared-memory multiprocessor; chip multiprocessor; simulation; Computer engineering; Datorteknik;

   Sammanfattning : The gap between processor speed and memory latency has led to the use of caches in the memory systems of modern computers. Programs must use the caches efficiently and exploit data locality for maximum performance. LÄS MER

4. 13. Performance Characterization of In-Memory Data Analytics on a Scale-up Server

   Författare :Ahsan Javed Awan; Mats Brorsson; Vladimir Vlassov; Eduard Ayguade; Boris Grot; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

   Sammanfattning : The sheer increase in volume of data over the last decade has triggered research in cluster computing frameworks that enable web enterprises to extract big insights from big data. While Apache Spark defines the state of the art in big data analytics platforms for (i) exploiting data-flow and in-memory computing and (ii) for exhibiting superior scale-out performance on the commodity machines, little effort has been devoted at understanding the performance of in-memory data analytics with Spark on modern scale-up servers. LÄS MER

5. 14. Exploiting data locality in adaptive architectures

   Författare :Dan Wallin; Erik Hagersten; Sverker Holmgren; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer Systems; Datorteknik;

   Sammanfattning : The speed of processors increases much faster than the memory access time. This makes memory accesses expensive. To meet this problem, cache hierarchies are introduced to serve the processor with data. However, the effectiveness of caches depends on the amount of locality in the application's memory access pattern. LÄS MER

7. 15. Efficient synchronization and coherence for nonuniform communication architectures

   Författare :Zoran Radović; Erik Hagersten; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Datavetenskap; Computer Science;

   Sammanfattning : Nonuniformity is a common characteristic of contemporary computer systems, mainly because of physical distances in computer designs. In large multiprocessors, the access to shared memory is often nonuniform, and may vary as much as ten times for some nonuniform memory access (NUMA) architectures, depending on if the memory is close to the requesting processor or not. LÄS MER