Large drilling machine control code - Parallelisation and WCET speedup

نویسندگان

  • Mike Gerdes
  • Julian Wolf
  • Irakli Guliashvili
  • Theo Ungerer
  • Michael Houston
  • Guillem Bernat
  • Stefan Schnitzler
  • Hans Regler
چکیده

Hard real-time applications in safety-critical domains – namely avionics, automotive, and machinery – require high-performance and timing analysability. We present research results of the parallelisation and WCET analysis of an industrial hard real-time application, i.e. the control code of a large drilling machine from BAUER Maschinen GmbH. We reached a quadcore speedup of 2.62 for the maximum observed execution time (MOET) and 1.93 on the WCET compared to the sequential version. For the WCET analysis we used the measurement-based WCET analysis tool RapiTime.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Accelerating Financial Code through Parallelisation and Source-Level Optimisation

In this paper we summarise the experiences we obtained during past years in accelerating financial code through parallelisation and source-level optimisation. We have been focusing on developing optimised parallel programs to speedup financial computations where either binomial tree method or Monte Carlo simulation was applicable. The parallelisation was through explicit POSIX multi-threading o...

متن کامل

Parallelising a Large Functional Program or: Keeping LOLITA Busy

A parallel version of the LOLITA natural language engineering system is under construction. We believe that, at 47,000 lines of Haskell, LOLITA is the largest non-strict parallel functional program ever. In this paper we report on the ongoing parallelisation of LOLITA, which has the following interesting features common to real world applications of lazy languages: { the code was not speciicall...

متن کامل

Analysis of path exclusion at the machine code level

We present a method to find static path exclusions in a control flow graph in order to refine the WCET analysis. Using this information, some infeasible paths can be discarded during the ILP-based longest path analysis which helps to improve precision. The new analysis works at the assembly level and uses the Omega library to evaluate Presburger formulas.

متن کامل

Early WCET Prediction Using Machine Learning

For delivering a precise Worst Case Execution Time (WCET), the WCET static analysers need the executable program and the target architecture. However, a prediction – even coarse – of the future WCET would be helpful at design stages where only the source code is available. We investigate the possibility of creating predictors of the WCET based on the C source code using machine-learning (work i...

متن کامل

Integrating WCET Analysis into a Matlab/Simulink Simulation Model

Traditional worst-case execution time (WCET) analysis interfaces to the user either through high-level language source code or assembly/machine code. This paper demonstrates how WCET analysis can be integrated into high-level application design and simulation tools like Matlab/Simulink, thus providing a higher-level interface to WCET analysis. The paper shows necessary restrictions and adaption...

متن کامل

ذخیره در منابع من

ذخیره در منابع من قبلا به منابع من ذحیره شده

{@ msg_add @}


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2011