FAQ 002342 EN-US

Helpful Questions & Answers

  • Frequently Asked Questions (FAQs)

11/12/2019

002342

Frank Faulstich

General

RFEM

RSTAB

What are the optimal computer requirements for RFEM and RSTAB?

Answer

It is difficult to make a general statement regarding optimal computer requirements. This all depends on the types of models which will be calculated. The following information will help you configure the computer hardware best suited for your needs.

Processor

The RFEM calculation will always benefit from a multi-core processor. However, additional cores are not always necessarily better.

When the calculation is distributed over a high number of cores, the connection between cores becomes increasingly busier creating a bottleneck type situation.

We suggest a maximum of ten to twelve cores.

An ideal compromise between performance and price is typically eight cores.

XEON CPUs have no advantage over desktop CPUs for our software. In many situations, RFEM can only use one core. The RSTAB calculation also utilizes one core. To achieve optimal performance, a high turbo cycle frequency is important. For XEON processors, this tends to be lower than for desktop processors.

Specifically, we recommend using one of the following processors:

  • Intel® Core™ i9-10920X
  • Intel® Core™ i9-10900X
  • Intel® Core ™ i9-10885H
  • Intel® Core ™ i9-10980HK
  • Intel® Core ™ i9-10900KF
  • Intel® Core ™ i9-10900K
  • Intel® Core ™ i9-10900F

Processors from Intel are recommended. Our programs are not tested with Ryzen processors so no additional feedback can be given.

Modern processors have a sophisticated temperature management. The cycle frequency is adjusted dynamically depending on the processor temperature. Processor cooling can improve the performance. Therefore, we recommend a generously dimensioned computer case and a good cooling fan for the processor.

RAM

It is important for the computer to quickly access the random access memory. We recommend to use DDR4 RAM.

In RFEM, the optimal RAM size depends on the model FE mesh, or in RSTAB, on the number of members. Unfortunately, it is not possible to directly determine the required memory size from the number of FE nodes or members. This will only aid in testing.

We recommend a minimum of 16 GB RAM. It is also useful to equip the motherboard with RAM so that a simple upgrade is possible.

All memory channels should be utilized.

ECC memory, offered in some computers, has no speed-related advantage for RFEM or RSTAB.

Graphics card

For the graphics card, we recommend the manufacturer Nvidia. The general integrated graphics processors from Intel are not sufficient for RFEM or RSTAB.

We advise against using Quadro cards and recommend a "game card" GTX series with Pascal architecture (GTX 10XX) or alternatively the RTX series with Turing architecture (RTX 20XX). Game cards and Quadro cards rarely differ in hardware. Game card drivers are known to be more compatible with RFEM or RSTAB and are less expensive than Quadro cards.

The size of the map memory is not relevant for RFEM/RSTAB.

It is important to maintain or update to the current graphics card driver.

To avoid complications, it’s best to deactivate the graphics card integrated in the main processor directly in the BIOS. Otherwise, you’ll need to assign the NVIDIA card in the NVIDIA control panel to RFEM/RSTAB.

Mass storage

A quick connecting SSD (possibly NVMe) is more ideal than an HDD. However, this only provides an advantage for the computing speed in exceptional cases. Opening and saving large files will be quicker.

Software

Software running in the background can be detrimental for computing speed.

Antivirus software can considerably slow down the calculation. During the calculation, RFEM and RSTAB read and write multiple files into the working folder. It may have a positive effect on the computing speed if you exclude this folder from the real-time monitoring of your antivirus software (see Figure 02).

BIOS Update

Experience has shown firmware on the motherboard did not optimally run on a computer with high RAM. This resulted in a significant reduction in computing speed. If you are utilizing a new board, determine if a BIOS update is available.

Keywords

Hardware CPU Processor RAM SSD Graphics card Computer requirements

Write Comment...

Write Comment...

  • Views 3222x
  • Updated 11/23/2020

Contact us

Contact Dlubal

Did you find your question?
If not, contact us via our free e-mail, chat, or forum support, or send us your question via the online form.

(267) 702-2815

info-us@dlubal.com

Online Training | English

Eurocode 5 | Timber structures according to DIN EN 1995-1-1

Online Training 05/20/2021 8:30 AM - 12:30 PM CEST

Online Training | English

RFEM | Structural dynamics and earthquake design according to EC 8

Online Training 06/02/2021 8:30 AM - 12:30 PM CEST

Glass Design with Dlubal Software

Glass Design with Dlubal Software

Webinar 06/08/2021 2:00 PM - 2:45 PM CEST

Online training | English

RFEM for Students | Part 3

Online Training 06/15/2021 2:00 PM - 4:30 PM CEST

Online Training | English

RFEM | Basics | USA

Online Training 06/17/2021 9:00 AM - 1:00 PM EDT

Online training | English

RFEM | Basics

Online Training 07/13/2021 9:00 AM - 1:00 PM CEST

Online training | English

Eurocode 2 | Concrete structures according to DIN EN 1992-1-1

Online Training 07/29/2021 8:30 AM - 12:30 PM CEST

Blast Time History Analysis in RFEM

Blast Time History Analysis in RFEM

Webinar 05/13/2021 2:00 PM - 3:00 PM EDT

timber structures | Part 2: design

Timber Beam and Surface Structures | Part 2: Design

Webinar 05/11/2021 2:00 PM - 3:00 PM CEST

Plate and Shell Buckling Utilizing Dlubal Software

Plate and Shell Buckling Utilizing Dlubal Software

Webinar 03/30/2021 2:00 PM - 2:45 PM CEST

CSA S16:19 Steel Design in RFEM

CSA S16:19 Steel Design in RFEM

Webinar 03/10/2021 2:00 PM - 3:00 PM EDT

The Most Common User Errors With RFEM and RSTAB

The Most Common User Errors With RFEM and RSTAB

Webinar 02/04/2021 2:00 PM - 3:00 PM BST

ADM 2020 Member Design in RFEM

ADM 2020 Member Design in RFEM

Webinar 01/19/2021 2:00 PM - 3:00 PM EDT

Dlubal Info Day

Dlubal Info Day Online | December 15, 2020

Webinar 12/15/2020 9:00 AM - 4:00 PM BST

FEA Troubleshooting and Optimization in RFEM

FEA Troubleshooting and Optimization in RFEM

Webinar 11/11/2020 2:00 PM - 3:00 PM EDT

Soil-Structure Interaction in RFEM

Soil-Structure Interaction in RFEM

Webinar 10/27/2020 2:00 PM - 2:45 PM BST

NBC 2015 Modal Response Spectrum Analysis in RFEM

NBC 2015 Modal Response Spectrum Analysis in RFEM

Webinar 09/30/2020 2:00 PM - 3:00 PM EDT

Documenting Results in the RFEM Printout Report

Webinar 08/25/2020 2:00 PM - 2:45 PM CEST

ACI 318-19 Concrete Design in RFEM

ACI 318-19 Concrete Design in RFEM

Webinar 08/20/2020 2:00 PM - 3:00 PM EDT

How to Be More Productive Using RFEM

How to Be More Productive Using RFEM

Webinar 07/07/2020 3:00 PM - 4:00 PM CEST

Introduction to Solid Modeling \n in RFEM

Introduction to Solid Modeling in RFEM

Webinar 06/30/2020 2:00 PM - 3:00 PM EDT

Modeling with Solids in RFEM

Modeling with Solids in RFEM

Webinar 06/09/2020 3:00 PM - 3:45 PM CEST

RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD
RSTAB Main Program
RSTAB 8.xx

Main Program

The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,550.00 USD