A decade or two ago, it was worthwhile to write numerical code to avoid using multiplies and divides and use addition and subtraction instead. A good example is using forward differences to evaluate a polynomial curve instead of computing the polynomial directly. Is this still the case, or have modern computer architectures advanced t...
Hey everyone, I came from this thread: http://stackoverflow.com/questions/1536867/flops-intel-core-and-testing-it-with-c-innerproduct As I began writing simple test scripts, a few questions came into my mind. Why floating point? What is so significant about floating point that we have to consider? Why not a simple int? If I want to ...
I am looking for a hardware, which must run about 256 computationally intensive real-time concurrent tasks in 24 hour mode (one multi-threaded C application). Each task takes about 40-50 MFLOPs, so all tasks require about 10 GFLOPs. CPU-RAM speed is insignificant. All tasks must be managed by a Linux Kernel (32 bit, with SMP). I am look...
Already finished my application which multiplies CRS matrix and vector (SpMV) and the only thing to do now is to count FLOPS my application did. In my opinion it's really hard to estimate number of floating point operation in case of sparse matrix - vector multiplication, because the number of multiplies in one row is really "jumpy" or f...
I'm currently measuring the performance of some code in FLOPS. This code presents some arithmetic negate instructions like this one: d = -a where d and a are floating point variables. The architecture I'm currently using does have specific negate instructions. Should I have to take into account this kind of operations to measure FLOPS...
Do RFID tags have a "real" processor capable of simple computations? If so, what is the processing power of nowadays RFID processors? ...
I discovered my computer has NVIDIA CUDA Technology and I want measure the power of processing, in CPU and GPU. Instead of searching for a program to do this, I want have a deeper understanding of how it works. What kind of code (C/C++) I need? ...
Say I have a C program that in pseudoish is: For i=0 to 10 x++ a=2+x*5 next Is the number of FLOPs for this (1 [x++] + 1 [x*5] + 1 [2+(x+5))] * 10[loop], for 30 FLOPS? I am having trouble understanding what a flop is. Note the [...] are indicating where I am getting my counts for "operations" from. ...
hi...i'm trying to count the GPU and CPU FLOPS and i've got the source from http://norma.mbg.duth.gr/index.php?id=about:benchmarks:cuda_flops i renamed it to cudaflops.cu and compile it with this makefile ################################################################################ # # Build script for project # ####################...