Sökning: "remote access cache"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden remote access cache.

1. 1. Towards Low-Complexity Scalable Shared-Memory Architectures

   Författare :Håkan Zeffer; Erik Hagersten; John Carter; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; shared memory; distributed shared memory; hardware-software trade-off; software coherence; coherence profiling; remote access cache; chip multiprocessor; simultaneous multi threading; simulation; workload characterization; statistical cache model; Computer engineering; Datorteknik;

   Sammanfattning : Plentiful research has addressed low-complexity software-based shared-memory systems since the idea was first introduced more than two decades ago. However, software-coherent systems have not been very successful in the commercial marketplace. We believe there are two main reasons for this: lack of performance and/or lack of binary compatibility. LÄS MER

3. 2. Software Techniques for Distributed Shared Memory

   Författare :Zoran Radovic; Erik Hagersten; Sandhya Dwarkadas; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; synchronization; distributed shared memory; write permission cache; nonuniform communication architecture; node affinity; locality; hardware-software trade-off; profiling; flexibility; trap-based memory architecture; Computer engineering; Datorteknik; Data- och systemvetenskap; Computer Systems Sciences;

   Sammanfattning : In large multiprocessors, the access to shared memory is often nonuniform, and may vary as much as ten times for some distributed shared-memory architectures (DSMs). This dissertation identifies another important nonuniform property of DSM systems: nonuniform communication architecture, NUCA. LÄS MER

4. 3. 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

5. 4. On Certificate Transparency Verification and Unlinkability of Websites Visited by Tor Users

   Författare :Rasmus Dahlberg; Tobias Pulls; Stefan Lindskog; Steven J. Murdoch; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Auditing; Certificate Transparency; DNS; Gossip; Side-Channels; Timing Attacks; Tor; Tor Browser; Website Fingerprinting; Website Oracles; Granskning; Certificate Transparency; DNS; Skvaller; Sidokanaler; Tidtagningsattacker; Tor; Torswebbläsare; Mönsterigenkänning; Webbplatsorakel; Computer Science; Datavetenskap;

   Sammanfattning : Certificate Transparency is an ecosystem of logs, monitors, and auditors that hold certificate authorities accountable while issuing certificates. We show how the amount of trust that TLS clients and domain owners need to place in Certificate Transparency can be reduced, both in the context of existing gradual deployments and the largely unexplored area of Tor. LÄS MER

7. 5. Multithreaded PDE Solvers on Non-Uniform Memory Architectures

   Författare :Markus Nordén; Michael Thuné; Sverker Holmgren; Xing Cai; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; PDE solver; high-performance; NUMA; UMA; OpenMP; MPI; data migration; data replication; thread scheduling; data affinity; Beräkningsvetenskap; Scientific Computing;

   Sammanfattning : A trend in parallel computer architecture is that systems with a large shared memory are becoming more and more popular. A shared memory system can be either a uniform memory architecture (UMA) or a cache coherent non-uniform memory architecture (cc-NUMA). LÄS MER