ndifference | Tools for public API difference reporting on .Net assemblies | Reflection library
kandi X-RAY | ndifference Summary
kandi X-RAY | ndifference Summary
NDifference is a difference and reporting tool to allow developers to discover breaking changes in the public API of a .Net project between releases at the assembly level. It works with published assemblies via reflection and does not require the original source code. It performs static analysis on .Net assemblies, providing built-in inspectors for the most common checks and supports loading of custom inspectors. Analysis is performed at the library, assembly and type level.
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QUESTION
I am using CUDA 5.5 compute 3.5 on GTX 1080Ti and want to compute this formula:
y = a * a * b / 64 + c * c
Suppose I have these parameters:
...ANSWER
Answered 2020-Nov-09 at 18:24This small numerical difference of one single-precision ulp occurs because the CUDA compiler applies FMA-merging by default, whereas the host compiler does not do that. FMA-merging can be turned off by adding the command line flag -fmad=false to the invocation of the CUDA compiler driver nvcc.
FMA-merging is a compiler optimization in which an FMUL and a dependent FADD are transformed into a single fused multiply-add, or FMA, instruction. An FMA instruction computes a*b+c such that the full unrounded product a*b enters into the addition with c before a final rounding is applied to produce the final result.
Usually, this has performance advantages, since a single FMA instruction is executed instead of two instructions FMUL, FADD, and all the instructions have similar latency. Usually, this also has accuracy advantages as the use of FMA eliminates one rounding step and guards against subtractive cancellation when a*c and c have opposite signs.
In this case, as noted by OP, the GPU result computed with FMA is slightly more accurate than the host result computed without FMA. Using a higher precision reference, I find that the relative error in the GPU result is -4.21e-8, while the relative error in the host result is 4.95e-8.
QUESTION
I visited other questions similar to mine but did not find the one that is applicable to me.
To lessen my line of codes instead of copy pasting that input process to my if else statement. I created a UInputs(); method that will get user inputs. So I can just call it whenever it is needed but i cant use the user inputted values inside UInputs().
ANSWER
Answered 2020-Oct-02 at 12:32you can create some kind of wrapper class
QUESTION
Newbie starting with Numba/cuda here. I wrote this little test script to compare between @jit and @cuda.jit. speeds, just to get a feel for it. It calculates 10M steps of a logistic equation for 256 separate instances. The cuda part takes approximately 1.2s to finish. The cpu 'jitted' part finishes in close to 5s (just one thread used on the cpu). So there is a speedup of about x4, from going to the GPU (a dedicated GTX1080TI not doing anything else). I expected the cuda part, doing all 256 instances in parallel, to be much faster. What am I doing wrong?
Here is the working example:
...ANSWER
Answered 2020-Aug-21 at 07:51The problem likely comes from the very small amount of data and the loop dependency. Indeed, modern Nvidia GPUs can execute thousands of CUDA threads simultaneously (packed in warps of 32 threads) thanks to the large amount of CUDA cores. In your case, each thread performs a computation on one cell of array_out using a sequential loop. However, there are only 256 cells. Thus, at most 256 threads (8 warps) can run simultaneously - only a tiny faction of the number of simultaneous threads that your GPU should be able to manage. As a result, if you want a better speed-up, you need to provide more parallelism to the GPU (for example by increasing the data size or by computing multiple regression at the same time).
QUESTION
I'm very new to C++, and need some help correcting some errors in it. I use G++ to compile my code. This is my code:
...ANSWER
Answered 2020-May-20 at 18:48Try this.
QUESTION
So i've been asked to create a simple solar system simulator for my coursework. Our lecturer has set out very specific guidelines in terms of the structure of constructors and methods of our classes.
Mostly I've managed to write the program without appearing of the errors, but still there's part of the code which I don't know how to change to make it work according the task.
This is my code:
...ANSWER
Answered 2018-Dec-11 at 06:39I will just work on compile errors since that's what the question is about and ignore how the code works but will try to make it as close to working.
Okay right of the bat, The first error I see is missing constructor! You did not define a constructor which takes in String, Double as the param so here you go.
QUESTION
Lets say I'm writing a program that checks if input [ one number and equality statement ] compared against a randomly generated number is true, here's my code for reference:
...ANSWER
Answered 2018-Nov-15 at 20:20You rarely need to use Boolean literals. Your switch first reduces to
QUESTION
What is the problem with my code here? When I try to run the application in debug mode I get an error saying "'ConsoleApplication1.CS.adds(double, double)' is inaccessible due to its protection level" and the same with subs and muls methods in each class.
...ANSWER
Answered 2018-Oct-21 at 14:16There are two problems with the code.
First: you are omitting the access modifiers from your method definitions. By default C# marks them as private, which means your methods can be only used in the same class (not even in descendants). The Program is a different class from cs, therefore access is not allowed.
Second: you are accessing the static methods by a class instance. To invoke a static method, you should use the class's name before it, instead of an object of that class.
So, the compilable version would be:
QUESTION
I'm writing a script which is based in a dropbox folder, working between a mac and a PC. One day, with nothing changed, the graphics no longer reads the Windows fonts database, and the plots themes are no longer being applied. I can manually set the font using
...ANSWER
Answered 2018-Jul-27 at 18:45It required a few extra steps,
First, adding the fonts using
QUESTION
I'm trying to make a simple benchmarking algorithm, to compare different operations. Before I moved on to the actual functions i wanted to check a trivial case with a well-documented outcome : multiplication vs. division.
Division should lose by a fair margin from the literature i have read. When I compiled and ran the algorithm the times were just about 0. I added an accumulator that is printed to make sure the operations are actually carried out and tried again. Then i changed the loop, the numbers, shuffled and more. All in order to prevent any and all things that could cause "divide" to do anything but floating point division. To no avail. The times are still basically equal.
At this point I don't see where it could weasel its way out of the floating point divide and I give up. It wins. But I am really curious why the times are so close, what caveats/bugs i missed, and how to fix them.
(I know filling the vector with random data and then shuffling is redundant but I wanted to make sure the data was accessed and not just initialized before the loop.)
("String compares are evil", i am aware. If it is the cause of the equal times, i will gladly join the witch hunt. If not, please don't mention it.)
compile:
...ANSWER
Answered 2018-Apr-20 at 10:58You aren't just measuring the speed of multiplication/divide. If you put your code into https://godbolt.org/ you can see the assembly generated.
You are measuring the speed of calling a function and then doing multiply/divide inside the function. The time taken for the single multiply/divide instruction is tiny compared to the cost of the function calls so gets lost in the noise. If you move your loop to inside your function you'll probably see more of a difference. Note that with the loop inside your function your compiler may decide to vectorise your code which will still show whether there is a difference between multiply and divide but it wont be measuring the difference for the single mul/div instruction.
QUESTION
can you guys help me to displaying the time difference in Java. I've done it but there's some code that should not have to be rewritten.
...ANSWER
Answered 2017-Sep-24 at 17:00The below code will pretty much does as your code, but removes the repeated section of the logic by moving it to a separated method.Everytime you need to print any date with the specified Date Formats,You can call printDates by passing a Date Object
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