Sökning: "auto-tuning"

Visar resultat 1 - 5 av 8 avhandlingar innehållade ordet auto-tuning.

  1. 1. Evaluation and tuning of PID controllers

    Författare :Birgitta Kristiansson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cinstrained optimization; auto-tuning; robustness; PI control; PID control; Smith predictor; PIPD control; performance; rolloff; evaluation;

    Sammanfattning : .... LÄS MER

  3. 2. Identification and tuning of algorithmic parameters in parallel matrix computations : Hessenberg reduction and tensor storage format conversion

    Författare :Mahmoud Eljammaly; Bo Kågström; Lars Karlsson; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis considers two problems in numerical linear algebra and high performance computing (HPC): (i) the parallelization of a new blocked Hessenberg reduction algorithm using Parallel Cache Assignment (PCA) and the tunability of its algorithm parameters, and (ii) storing and manipulating dense tensors on shared memory HPC systems.The Hessenberg reduction appears in the Aggressive Early Deflation (AED) process for identifying converged eigenvalues in the distributed multishift QR algorithm (state-of-the-art algorithm for computing all eigenvalues for dense square matrices). LÄS MER

  4. 3. Automatic memory management for flexible real-time systems

    Författare :Sven Robertz; Institutionen för datavetenskap; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; feedback scheduling; embedded systems; real-time; memory management; garbage collection; numerical analysis; systems; control; Datalogi; numerisk analys; system; kontroll;

    Sammanfattning : In a flexible real-time system, the constraints in available CPU time and memory lead to resource management problems, which must be handled carefully in order to maximize quality of service while avoiding overload. Managing CPU time -- scheduling -- is well studied and dynamic scheduling is widely accepted in the real-time industry. LÄS MER

  5. 4. Towards self-driving microservices

    Författare :Mohammad Reza Saleh Sedghpour; Johan Tordsson; Cristian Klein; Cesare Pautasso; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Microservices; Autonomic Computing; Service Mesh; Reliability; Circuit Breaker; Retry; Microservice Resiliency; Microservice Benchmarking; Reproducibility; Repeatability.; Computer Science; datalogi;

    Sammanfattning : In recent years, microservice architecture has become a popular method for software system design and development. This involves creating applications with multiple small services, each with multiple instances, operating as independent processes. LÄS MER

  7. 5. Attenuation of hand-held machine vibrations. Application of non-linear tuned vibration absorber

    Författare :Hans Lindell; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Impact machine; Hand-arm vibration; High frequency vibration; ATVA; Nonlinear tuned vibration absorber; White finger; HAVS; Transient vibration; Auto Tuned Vibration Absorber; Vibration dynamics; ISO 5349;

    Sammanfattning : Vibration injury in the hand-arm system from vibrating hand-held machines is one of the most common occupational health injuries and causes severe and often chronic nerve and vascular injuries to the operator. The objective with this study is to contribute to reduce hand-arm vibration injuries, first by developing methods of redesigning machines that will lower their vibration level and second to study how high frequency vibrations (HFV) above 1250 Hz effect the finger tissue which are not included in the current standard for risk evaluation. LÄS MER