Analysis using multiprocessors

INDEX

• Use of multiprocessors
• CYPECAD and CYPE 3D modules

Use of multiprocessors

CYPECAD, CYPE 3D and the Dynamic fire simulation module of CYPECAD MEP use, during the analysis process, the potential offered by multiprocessors.

To acquire these benefits, there are two modules available which allow the user to make the most of the yield advantages of the multiprocessors:

• Parallel analysis with two multiprocessors
• Parallel analysis with up to eight processors

Using computers containing several parallel processors and the corresponding module, an important amount of time can be saved when carrying out the analysis in CYPECAD, CYPE 3D and the Dynamic fire simulation module of CYPECAD MEP.

The time required to carry out the analysis in CYPECAD and CYPE 3D is substantially different when the Parallel analysis using two processors module is used or when the Parallel analysis using up to eight processors is used. Additionally, the time taken to re-design sections in CYPE 3D is also considerably reduced. The Dynamic fire simulation of CYPECAD MEP requires the use of the Parallel analysis using up to eight processors module to resolve complex fire simulations and, therefore, use a computer which has four or more processors.

The time taken to analyse a structure does not only depend on what type of processor the computer has installed (multiprocessor or monoprocessor), other factors also intervene, such as the hardware installed on the computer, the operating system and, of course, the structure being analysed (type of floor slab introduced, presence of walls, volume of the structure to analyse, etc).

To test the yield rate of the two analysis using multiprocessors modules, we at CYPE, have carried out several comparative studies using a computer with two multiprocessors and another with four. Several jobs have been analysed in both computers using the corresponding module and without it. 

Comparative study:

The table below provides a summary of the properties of 4 jobs that were analysed and the respective time reductions in the analysis when the modules were used:

Job description		Job Number
		1	2	3	4
Number of floors		6	4	6	27
Floor slab surface areas m2	Waffle slab	5 822	4 951		23 579
	Flat slab	2 181		32 432	3 713
	Mat foundation		1 911		1 255
	Total	8 003	6 862	32 432	28 547
Wall lateral surface area m2		1 017	1 093	11 021	2 342
Applied loads		wind & seismic	wind & seismic	wind & seismic	wind & seismic
Analysis with 2 multiprocessors	WITH module	6H 33'	1H 19'	6H 11'	3H 56'
	WITHOUT module	11H 54'	2H 20'	10H 32'	6H 25'
	Time saved	45%	43%	41%	39%
Analysis with 4 multiprocessors	WITH module	3H 6'	41'	3H 23'	2H 21'
	WITHOUT module	9H 17'	1H 51'	8H 27'	5 H 18'
	Time saved	67%	63%	60%	56%

 

The time saved in analysing the structure is multiplied bearing in mind that a single structure may have to be analysed several times until its optimum design is reached.

In these comparatives, for each test, the only factor that was varied was the use of the Analysis with multiprocessors module.

 

 

CYPECAD and CYPE 3D modules

CYPE 3D modules:

• Timber sections
• Aluminium and generic sections

CYPECAD modules:

• Steel columns
• Steel beams
• Joist floor slabs (generic concrete joists)
• Joist floor slabs (in-situ, precast and steel)
• Timber joist floor slabs
• Waffle slabs
• Flat slabs
• Punching shear verification (Also operates as an independent program)
• Composite slabs
• Hollow core slabs
• Post-tensioned concrete slabs for buildings
• Shear walls
• Reinforced concrete walls
• Plane stress walls
• Stairs
• Mat foundations and foundation beams
• Concrete block walls
• Interaction of the structure with the construction elements
• Automatic job introduction: DXF, DWG and CAD/BIM models
• Collective protection systems
  

Modules common to CYPECAD and CYPE 3D:

• Concrete columns
• Composite steel and concrete columns
• Concrete beams
• Timber sections
• Pile caps (includes strap and tie beams)
• Baseplates
• Footings (pad and strip) (includes strap and tie beams)
• Advanced design of surface foundations
• Fire resistance check
• Parallel analysis with two multiprocessors
• Parallel analysis with up to eight processors
• Joints I. Welded. Warehouses with rolled and welded steel I sections
• Joints II. Bolted. Warehouses with rolled and welded steel I sections
• Joints III. Welded. Building frames with rolled and welded steel I sections
• Joints IV. Bolted. Building frames with rolled and welded steel I sections
• Joints V. Flat trusses with hollow structural sections
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