twister | An HTTP server for the Go programming language | HTTP library
kandi X-RAY | twister Summary
kandi X-RAY | twister Summary
Twister is an HTTP server for the Go programming language. Twister is a work in progress.
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Trending Discussions on twister
QUESTION
This is my first post here and I am not that experienced, so please excuse my ignorance.
I am building a Monte Carlo simulation in C++ for my PhD and I need help in optimizing its computational time and performance. I have a 3d cube repeated in each coordinate as a simulation volume and inside every cube magnetic particles are generated in clusters. Then, in the central cube a loop of protons are created and move and at each step calculate the total magnetic field from all the particles (among other things) that they feel.
At this moment I define everything inside the main function and because I need the position of the particles for my calculations (I calculate the distance between the particles during their placement and also during the proton movement), I store them in dynamic arrays. I haven't used any class or function,yet. This makes my simulations really slow because I have to use eventually millions of particles and thousands of protons. Even with hundreds it needs days. Also I use a lot of for and while loops and reading/writing to .dat files.
I really need your help. I have spent weeks trying to optimize my code and my project is behind schedule. Do you have any suggestion? I need the arrays to store the position of the particles .Do you think classes or functions would be more efficient? Any advice in general is helpful. Sorry if that was too long but I am desperate...
Ok, I edited my original post and I share my full script. I hope this will give you some insight regarding my simulation. Thank you.
Additionally I add the two input files
...ANSWER
Answered 2021-Jun-10 at 13:17I talked the problem in more steps, first thing I made the run reproducible:
QUESTION
Below is my Azure Function App code which triggers on a Service bus topic. After certain delay, I run across this error in my console "The lock supplied is invalid. Either the lock expired, or the message has already been removed from the queue. while removing message".
On googling and referring other stack overflow posts, one solution that has been asked to try is specifying the Maxconcurrent calls but I couldn't figure out where do I specify that and how do I do it in my below code. If someone can help me on that and also if any other alternative I should try for this error.
...ANSWER
Answered 2021-May-24 at 05:47The error basically means that the Function App couldn't process the message during the lock duration time which is 30 seconds by default, an alternative solution would be to increase to lock duration from 30 to 60 and see if that helps on decreasing the amount of lock invalid exceptions. Regarding where to specify the "maxConcurrentCalls" that is done in the host.json settings file
QUESTION
I hope my question doesn't sound like a tongue twister.
I have a table with 2 columns, one column (let's call it "customer_ID") is the customer identifier, and the other columns (let's call it "Date") is the date of the purchase of said customer. For example:
Customer_ID Date 807x 2010-2 807x 2010-3 789y 2010-2 789y 2010-4 323z 2010-1 323z 2010-5 323z 2010-6There are customers who have made one purchase, and customers who have made several.
I can count the number of times each customer has bought with:
...ANSWER
Answered 2021-Mar-13 at 03:38Try value_counts
twice:
QUESTION
I want to use some of the parameters of the original deepnet
package, so I set up a custom model. I read Caret's documentation (Custom Model), but it doesn't work.
Here is my code for setting up the customized model:
...ANSWER
Answered 2021-Mar-08 at 19:27I found the answer myself...
It was a simple mistake: I had to remove the quotation marks in method
when applying the customized model:
QUESTION
I have the following generic C++ generic URNG function:
...ANSWER
Answered 2021-Feb-03 at 06:55Most vexing parse problem.
You have to write:
QUESTION
I would like to duplicate in C++ the testing for some code that has already been implemented in Python3 which relies on numpy.random.rand
and randn
values and a specific seed (e.g., seed = 1
).
I understand that Python's random implementation is based on a Mersenne twister. The C++ standard library also supplies this in std::mersenne_twister_engine
.
The C++ version returns an unsigned int, whereas Python rand is a floating point value.
Is there a way to obtain the same values in C++ as are generated in Python, and be sure that they are the same? And the same for an array generated by randn
?
ANSWER
Answered 2021-Jan-24 at 16:10You can do it this way for integer values:
QUESTION
Write a program that asks the user to input how many prosperity burgers (either single or double patty), twisted fries, drinks and 3 other available menus from McDonalds that he or she actually ate and then reports how many calories were consumed. At the end of your program, you need to display some wish for CNY. For example: “Happy Chinese New Year to those who celebrate it!!”. Format your calory readings in fixed-point notation, with two decimal places of precision, and be sure the decimal point is always displayed. **Your 3 additional available menus could be any menus that you want to consider in your program.
Menu
- Beef Prosperity Burger
- Double Beef Prosperity Burger
- 6pcs Chicken McNuggets
- Ayam Goreng McD Spicy
- OREO McFlurry
Calories
- Beef Prosperity Burger - 490kcal, Twister Fries - 450kcal, Mcfizz - 250kcal
- Double Beef Prosperity Burger - 802kcal, Twister Fries - 450kcal, Mcfizz - 250kcal
- 6pcs Chicken McNuggets - 254kcal
- Ayam Goreng McD Spicy - 572kcal
- OREO McFlurry - 304kcal
ANSWER
Answered 2021-Jan-30 at 17:16Variable name shouldn't contain spaces
According to a rule to declare varaible name in C++
- Variable name must begin with letter or underscore.
- It should not start with numbers
- It should not contain spaces
- No special symbols are allowed other than underscore.
It must be declared as
QUESTION
I got hold on an SUPER-FAST algorithm that generates an array of random bytes, uniformly. It's 6 times faster than c++ uniform distribution and mersenne-twister of std library.
The count of an array is divisible by 4, so it can be interpreted as array of integers. Casting each entry to an integer, produces values in the range [INT_MIN, INT_MAX]
. But how can I transform these integer values to lie between my own [min, maximum]
?
I want to avoid any if-else, to avoid branching.
Maybe I should apply some bitwise logic, to discard irrelevant bits in each number? (because all remaining, unmasked bits will be either 0 or 1 anyway). If I can extract the most significant bit in my maximum-value, I could mask any bits that are more significant than that one, in my integers.
For example, if I want my max
to be 17, then it is 00010001
in binary form. Maybe my mask would then look as 00011111
? I could then apply it to all numbers in my array.
But, this mask is wrong ...It actually allows values up to (1+2+4+8+16)
:(
What can I do? Also, how to take care of the min
?
Edit
I am generating millions of numbers every frame of my application, for neural networks. I managed to vectorize the code using AXV2 for float variants (using this post), but need to get integers working too.
...ANSWER
Answered 2021-Jan-04 at 13:34The core idea is to use modulo instead of bitwise masks, which are useless in non-power-of-2 case. No branching is also a bit weird requirement. What you want is "fast enough", not "no branching and bitwise masks".
So assume that we have a function
QUESTION
i have been provided middleearth.h/cpp and was asked to make a makefile, doxyfile (which i did correctly) and a topological.cpp that works but has a small mistake in the output and i need help with that please.ill provide all three files and the text we use to test and the error.
...ANSWER
Answered 2020-Nov-17 at 06:15You are confusing yourself. You have your solution in edges
. There isn't a reason to read the data a second time. For example, you can simply output sorted/unique elements of edges
, e.g. the modifications to your code are:
QUESTION
I am completely new to PHP and I am trying to teach myself here and play with the prospect of creating my very own WordPress theme - YAY!
Anyway, I am running into a roadblock here and I am not certain if this is just the IDE I am using (PhpStorm), or if it is something else.
Here is what I am seeing in PhpStorm:
When I use Kint, it shows that the namespace is defined as shown in the screenshot above (namespace SavvyPro\Sandbox):
Here is the complete code:
...ANSWER
Answered 2020-Nov-06 at 00:08I emailed JetBrains support and they got back to me with the fix and it is exactly what @LazyOne mentioned in the comments section above.
I simply deleted the following folder on my Mac and it resolved the issue:
~Library/Caches/JetBrains/PhpStorm2020.2
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Install twister
goinstall github.com/garyburd/twister/web
goinstall github.com/garyburd/twister/server
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