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fluidistic
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I have a dual core processor (intel) but I think that fortran programs only uses 1 processor. Can Fortran use both processors to calculate faster?
mgb_phys said:Yes that's one of the main advantages of Fortran over C/C++
Wether your particular Fortran compiler can do it depends.
mgb_phys said:The difficulty in c is that because you have pointers you can't know what memory a function will change without running it - so the compiler can't automatically split say the update of different parts of an array to different CPUs/Cores because they might not be independant. With Fortran you know they are and so can safely run multiple threads each using their own part of an array.
Sorry I don't know g95.
You can always use something like MPI to split a calculation across multiple CPUs/machines - but it might be overkill for just a dual core.
Yes, Fortran programs can be parallelized using various techniques such as OpenMP and MPI to take advantage of the multiple cores of a processor.
This depends on the specific implementation and parallelization method used. Some Fortran compilers may support up to thousands of cores, while others may have limitations.
In most cases, yes. Parallelizing a Fortran program can lead to significant improvements in performance, especially for programs that require heavy computation or data processing.
While multicore processors can greatly improve the performance of Fortran programs, there may be limitations depending on the specific program and the parallelization techniques used. It is important to carefully consider the design and implementation of parallelization to avoid potential issues.
There are various tools and methods for monitoring the usage of cores by a Fortran program, such as performance profilers and specialized libraries. It is important to properly test and benchmark your program to ensure it is making the most of the available cores.