Connection machine fortran, Computer Engineering

Assignment Help:

Q. Connection Machine FORTRAN?

Connection Machine Fortran was a subsequent SIMD language developed by Thinking Machines Corporation. Connection Machine Fortran incorporated all of FORTRAN 77 together with new array syntax of Fortran 90. It added different machine specific features however unlike CFD or DAP FORTRAN these appeared as compiler directives instead of special syntax in executable statements or Fortran declarations. A major development over previous languages was distributed array dimensions were no longer constrained to accurately fit in size of the processing element array. The compiler could transparently map dimensions of arbitrary extent across accessible processor grid dimensions. Ultimately the language added an explicitly parallel looping construct called FORALL. Though CM FORTRAN looked syntactically such as standard FORTRAN, the programmer had to be aware of numerous nuances such as the ILLIAC IV, the Connection Machine allowed Fortran arrays to either be distributed across processing nodes (known as CM arrays or distributed arrays) or allocated in memory of frontend computer (known as sequential arrays or front-end arrays). Nothing like the control unit of ILLIAC the Connection Machine frontend was general-purpose conventional computer--characteristically a Sun or VAX. However there were still important restrictions on how arrays could be manipulated, reflecting two possible homes.


Related Discussions:- Connection machine fortran

Explain about interrupt procedure, Q. Explain about Interrupt Procedure? ...

Q. Explain about Interrupt Procedure? The interrupt procedure uses request header to conclude the function requested by DOS. It also performs all functions for device driver. T

How does bus arbitration typically work, How does bus arbitration typically...

How does bus arbitration typically work? i.  A bus master waiting to use the bus asserts by  the bus request. ii.  A bus master cannot be the bus until it's request is grant

Invariant of the class, What are the conditions that have to be met for a c...

What are the conditions that have to be met for a condition to be an invariant of the class? Ans) ? The condition should hold at the end of each constructor. ? The conditi

Drag and drop state numbers and functions in vb, State 0 Source control is ...

State 0 Source control is being dragged with the variety of a target. 1 Out of the variety of a target. 2 One position in the target to one another.

Call the masm procedure, Assignment:  write a C program and a MASM procedur...

Assignment:  write a C program and a MASM procedure.  The C program calls the MASM procedure to perform letter case conversion. Text sections covered:  12.1 to 12.3.1 Write a

What is elapsed time of computer system, What is elapsed time of computer s...

What is elapsed time of computer system? The total time to implement the total program is known as elapsed time. It is affected by the speed of the processor, the disk and the

++ c, how to find the integral of a function represented by collection of e...

how to find the integral of a function represented by collection of experimental data

C++, minimum self program

minimum self program

Illustrate control and timing signals, Q. Illustrate control and timing sig...

Q. Illustrate control and timing signals? The requirement of I/O from different I/O devices by processor is quite unpredictable. In fact it relies on I/O needs of particular pr

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd