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Questions tagged [flops]

FLOPS (FLoating point Operations Per Second): a unit of measurement used to quantify the performance of the implementation of a numerical algorithm.

Anything related to the FLOPS unit of measurement (FLoating point Operations Per Second), i.e. a unit of measurement used to quantify the performance of the implementation of a numerical algorithm.

See Wikipedia page on FLOPS.

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Python code to benchmark in flops using threading

I'm having trouble writing a benchmark code in python using threading. I was able to get my threading to work, but I can't get my object to return a value. I want to take the values and add them to a list so I can calculate the flops. create class…
Missy
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Timing Experiment - Matrices

Determine a matrix size that you can comfortably fit into your available RAM. For example, if you have a 4 GB machine, you should be able to comfortably store a matrix that occupies about 800MB. Store this value in a variable Mb. Use the…
Ryan
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Better pipeline utilization causes lower performance in GPUs

I'm developing a simple OpenCL kernel, which is only doing computation with no memory access at all. Here is the kind of kernel we are executing on the GPU: __kernel void WGS512MAPI8LLXOPS64(const __global float *GIn, __global float *GOut, const int…
saman
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Performance gap between two almost the same OpenCL kernels

I have two almost the same OpenCL kernels which I want to calculate their performance in GFLOPS. Kernel #1 is: __kernel void Test41(__global float *data, __global float *rands, int index, int rand_max){ float16 temp; int gid =…
saman
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Calculating GPU's maximum flops using OpenCL

I am writing a simple OpenCL application, which is going to calculate the maximum experiment FLOPS of a target GPU device. I have decided to keep my cl kernel as simple as possible. Here are my OpenCL kernel and my host code. Kernel code…
saman
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CuSparse/CuBlas K40 vs GTX Titan X (Maxwell)

I am using both Tesla k40 and GTX Titan X and I have Cuda 8.0 The functions that I use are CuBlas and CuSparse library functions: cusparseDcsrsv2_solve(); cusparseDcsrmv(); cublasDdot(); Why GTX Titan X is faster than K40? I am compiling nvcc with…
Alessandro D'Auria
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How to calculate flops per second

As a previous post says and also wiki, "ivy bridge can do "8 DP FLOPs/cycle: 4-wide AVX addition + 4-wide AVX multiplication" I'm a bit confused here, I know ivy bridge doesn't have FMA, and AVX instruction set can do 4 DP/cycle, so why 4 addition +…
Junjie Li
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How to calculate the total number of FOP and floating-point performance of special operations(exp sin sqrt)?

When measuring an algorithm, if there are division operations, how to calculate the total number of FOP and floating-point performance? For example, n2 matrix multiplication, the calculation of n3 * 2flops (a multiplication, an addition), assuming…
Sherry818
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What is the FLOPs performance of MIPS64 architecture CPUs

I've been digging for quite some time and always hit a brick wall, when I try to estimate the FLOPs of a MIPS64 CPU series, that I'm evaluating for an embedded design. Moreover I can't seem to find how many floating point operations this CPU can do…
vlex
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How to create makefile CUDA so it executed in CPU to test CPU FLOPs?

I'm trying to count the GPU and CPU FLOPs and I've got the source from here I renamed it to cudaflops.cu and compiled it with this makefile ################################################################################ # # Build script for…
Arief Goldalworming
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How many FLOPs are there in calculating a factorial using math.factorial(n) in python

I am trying to understand how many FLOPs are there if I use a certain algorithm to find the exponential approximated sum, specially If I use math.factorial(n) in python. I understand FLOPs for binary operation, so is factorial also a binary…
bhjghjh
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Computing capability of each core

I am looking for a benchmark which measures the computing capability of each core in my system (a supercomputer). In the other word, I want to find the realistically achievable maximum floating-point operations per second in one processor. I found a…
Matrix
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Power consumption estimation from number of FLOPS (floating point operations)?

I have extracted how many flops (floating point operations) each of my algorithms are consuming, I wonder if I implement this algorithms on FPGA or on a CPU, can predict (roughly at least) how much power is going to be consumed? Both power…
Mehdi
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Calculating actual flop/core when using actual memory bandwidth

I want to calculate the actual amount of mflop/s/core using the following information: I have measured actual amount of memory bandwidth of each core in 1 node which is 4371 MB/s. I have also measured mflop/s/core on one node if I use only one…
Matrix
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Calculating mflop/s of a HPC application using memory bandwidth info

I want to calculate mflops (million of operations per second per processor) of a HPC application(NAS benchmark) without running the application. I have measured the memory bandwidth of each core of my system (a supercomputer) using Stream Benchmark.…
Matrix
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