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# m4 Chrennikov

### mstu

20 2011 이후 총 참여 횟수

#### m4 Chrennikov's 배지

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Angle between two vectors
You have two vectors , determine the angle between these two vectors For example: u = [0 0 1]; v = [1 0 0]; The a...

3년 이하 전

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Right and wrong
Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

3년 이하 전

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

3년 이하 전

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

3년 이하 전

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

3년 이하 전

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Add two numbers
Given a and b, return the sum a+b in c.

3년 이하 전

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

3년 이하 전

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

3년 이하 전

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

3년 이하 전

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

3년 이하 전

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

3년 이하 전

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

3년 이하 전

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

3년 이하 전

질문

binomial distribution with variable probability: code optimisation
Hi Theory is <http://en.wikipedia.org/wiki/Binomial_distribution here>. There is no problem to get pmf: n = 6; p = .2...

6년 이상 전 | 답변 수: 0 | 0

### 0

답변

답변 있음
how do I gather() a variable in atomicAdd()?
Try this: [c, ato] = feval(gpuadd, c,ato,b); out = gather(ato);

약 9년 전 | 0

| 수락됨

질문

CUDA toolkit version | using constant memory
Hi I've installed CUDA toolkit 4.1 instead of 4.0. And now matlab reports some errors depending on kernel that Im trying to c...

약 9년 전 | 답변 수: 2 | 0

### 2

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need help with gpu code
Im trying to use mutex in my code with no luck. Matlab says that kernel reaches timeout. kernel: __global__ void getGr...

9년 이상 전 | 답변 수: 0 | 0

### 0

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OS works with big lag during CUDAKernell execution
my OS is 32bit winXP SP3 I've noticed that during kernel execution OS works with big lag (about few seconds). Is this normal ...

9년 이상 전 | 답변 수: 2 | 0

### 2

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답변 있음
parallel.gpu.CUDAKernel memory types
Ping! I've read about LDU in Fermi arch, but it isn't clear for me in which cases values from global memory are cached. Could...

9년 이상 전 | 0

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parallel.gpu.CUDAKernel memory types
Hi folks. I would like to know which types of CUDA memory I can use with subj matlab object. More specifically I wonder if u...

9년 이상 전 | 답변 수: 2 | 0

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