Post by reden on Dec 17, 2022 2:41:19 GMT
I learnt from sound that the AI (which may or may not be sentient) ChatGPT is able to write and optimize code if asked.
I gave it the Repeater code example found in github.com/tsweet77/repeater-max/blob/main/Example_Repeating_Multiplying.cpp , which is more or less how the core of Repeater's code works.
It wrote an optimized C++ version, a C version, a Fortran, and even a Cobol version, all of which bearing the optimizations found in the C++ version.
This is amazing! It reportedly got 1 million users in only 5 days.
sound stated he asked ChatGPT for a digital buddhist prayer wheel in Python and it was made.
I gave it the Repeater code example found in github.com/tsweet77/repeater-max/blob/main/Example_Repeating_Multiplying.cpp , which is more or less how the core of Repeater's code works.
It wrote an optimized C++ version, a C version, a Fortran, and even a Cobol version, all of which bearing the optimizations found in the C++ version.
#include <stdio.h>
#include <string>
using namespace std;
int main() {
std::string intention = "It feels like I am at Disneyland.";
std::string intention_value;
std::string repeat_intention;
int ram_size_value = 1;
unsigned long long int INTENTION_MULTIPLIER =
(ram_size_value * 1024 * 1024 * 512);
intention_value.reserve(INTENTION_MULTIPLIER);
for (unsigned long long int i = 0; i < INTENTION_MULTIPLIER / intention.length(); ++i) {
intention_value.append(intention);
}
const std::string& ref = intention_value;
for (long long int a = 1; a <= 1E6; ++a) {
repeat_intention.resize(INTENTION_MULTIPLIER);
std::string::copy(ref.begin(), ref.end(), repeat_intention.begin());
}
return 0;
}
Here's the optimized C++ version, and it explained what it did.ChatGPT wrote:
Here are a few suggestions for optimizing the performance of your code:
Use a faster string concatenation method: The current implementation concatenates the intention string to the intention_value string using the += operator, which can be relatively slow for large strings. A faster alternative is to use std::string::reserve() to pre-allocate enough memory for the resulting string and then use std::string::append() to add the intention string to the end of intention_value. This avoids the overhead of reallocating memory and copying data that occurs with the += operator.
Avoid unnecessary string copies: In the loop at the end of the code, you are assigning the value of intention_value to repeat_intention using the assignment operator =. This creates a copy of the entire intention_value string, which can be slow for large strings. Instead, you can use a reference to intention_value and avoid the unnecessary string copy.
Use a better data type for the loop counter: The loop counter a is defined as an int, which means that it can only hold values up to a certain maximum. If the loop runs long enough, a will overflow and the loop will terminate prematurely. To avoid this, you should use a larger data type such as long long int for the loop counter.
Use a more efficient method for repeating the string: The current implementation repeats the intention_value string by assigning it to repeat_intention in a loop. This is relatively inefficient, as it involves creating a new string and copying data on each iteration. A more efficient alternative would be to use std::string::resize() to set the size of repeat_intention to the desired length and then use std::string::copy() to copy the intention_value string into repeat_intention. This avoids the overhead of creating and destroying strings in the loop.
I hope these suggestions help! Let me know if you have any questions or if you would like further assistance.
Here are a few suggestions for optimizing the performance of your code:
Use a faster string concatenation method: The current implementation concatenates the intention string to the intention_value string using the += operator, which can be relatively slow for large strings. A faster alternative is to use std::string::reserve() to pre-allocate enough memory for the resulting string and then use std::string::append() to add the intention string to the end of intention_value. This avoids the overhead of reallocating memory and copying data that occurs with the += operator.
Avoid unnecessary string copies: In the loop at the end of the code, you are assigning the value of intention_value to repeat_intention using the assignment operator =. This creates a copy of the entire intention_value string, which can be slow for large strings. Instead, you can use a reference to intention_value and avoid the unnecessary string copy.
Use a better data type for the loop counter: The loop counter a is defined as an int, which means that it can only hold values up to a certain maximum. If the loop runs long enough, a will overflow and the loop will terminate prematurely. To avoid this, you should use a larger data type such as long long int for the loop counter.
Use a more efficient method for repeating the string: The current implementation repeats the intention_value string by assigning it to repeat_intention in a loop. This is relatively inefficient, as it involves creating a new string and copying data on each iteration. A more efficient alternative would be to use std::string::resize() to set the size of repeat_intention to the desired length and then use std::string::copy() to copy the intention_value string into repeat_intention. This avoids the overhead of creating and destroying strings in the loop.
I hope these suggestions help! Let me know if you have any questions or if you would like further assistance.
This is amazing! It reportedly got 1 million users in only 5 days.
sound stated he asked ChatGPT for a digital buddhist prayer wheel in Python and it was made.
