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Load PDF from Memory ASP.Net


Load PDF from Memory ASP.Net

By : user3856111
Date : January 02 2021, 06:48 AM
it helps some times I've done exactly what you're trying to do. You'll want to create a handler (.ashx). After you've created your PDF load it in your handler using the code below:
code :


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Memory leak in PHP / Zend... seems to drain memory on every page load

Memory leak in PHP / Zend... seems to drain memory on every page load


By : reteP
Date : March 29 2020, 07:55 AM
will be helpful for those in need Apache with mod_php will obey the 'MaxRequestsPerChild' directive if required. This can restart the Apache/mod_php process after (say) 10,000 requests to clean up any memory leaks. After that is in place, you can start some investigations as to exactly where the issue is happening, and so remove the problem. Something as simple as using memory_get_usage() can be useful for that, or using Xdebug/XHprof for more widespread memory profiling.
java read 200mb file, when load in memory, how much memory will need?

java read 200mb file, when load in memory, how much memory will need?


By : Александр Шакалин
Date : March 29 2020, 07:55 AM
it fixes the issue For String size x 2 - String use char for each byte (you can set virtual machine flag to use byte)
code :
-XX:+UseCompressedStrings   
   Use a byte[] for Strings which can be represented as pure ASCII. 
   (Introduced in Java 6 Update 21 Performance Release)
Coalesced memory access and global memory load/store efficiency with complex arithmetics in CUDA

Coalesced memory access and global memory load/store efficiency with complex arithmetics in CUDA


By : Doraaa
Date : March 29 2020, 07:55 AM
I wish this helpful for you Take a look at this NVIDIA Blog Post about efficiency of various memory access patterns. You're hitting Strided Memory Access problem.
Since each component is used independently you could treat your double2 array as a plain normal double array instead (just like Robert Crovella suggested).
code :
__global__ void fftshift_2D(double *data, int N1, int N2)
{
    int i = threadIdx.x + blockDim.x * blockIdx.x;
    int j = threadIdx.y + blockDim.y * blockIdx.y;

    if (i < N1 * 2 && j < N2) {
        double a = pow(-1.0, (i / 2 + j)&1);
        data[j*blockDim.x*gridDim.x+i] *= a;
    }
}
__global__ void fftshift_2D(double *dataX, double *dataY, int N1, int N2)
{
    int i = threadIdx.x + blockDim.x * blockIdx.x;
    int j = threadIdx.y + blockDim.y * blockIdx.y;

    if (i < N1 && j < N2) {
        double a = pow(-1.0, (i+j)&1);

        dataX[j*blockDim.x*gridDim.x+i] *= a;
        dataY[j*blockDim.x*gridDim.x+i] *= a;
    }
}
__global__ void fftshift_2D(double2 *data, int N1, int N2)
{
    __shared__ double buff[BLOCK_SIZE*2];
    double2 *buff2 = (double2 *) buff;
    int i = threadIdx.x + blockDim.x * blockIdx.x;
    int j = threadIdx.y + blockDim.y * blockIdx.y;
    double ptr = (double *) &data[j*blockDim.x*gridDim.x + blockDim.x * blockIdx.x];

    // TODO add guarding with N1 & N2
    buff[threadIdx.x] = ptr[threadIdx.x];
    buff[blockDim.x + threadIdx.x] = ptr[blockDim.x + threadIdx.x];
    __syncthreads();

    double a = pow(-1.0, (i+j)&1);
    buff2[threadIdx.x].x *= a 
    buff2[threadIdx.x].y *= a 

    __syncthreads();
    ptr[threadIdx.x] = buff[threadIdx.x];
    ptr[blockDim.x + threadIdx.x] = buff[blockDim.x + threadIdx.x];
}
How to load data in global memory into shared memory SAFELY in CUDA?

How to load data in global memory into shared memory SAFELY in CUDA?


By : user3798064
Date : March 29 2020, 07:55 AM
I hope this helps you . Consider one warp of the thread block finishing the first iteration and starting the next one, while other warps are still working on the first iteration. If you don't have __syncthreads at label sync2, you will end up with this warp writing to shared memory while others are reading from that shared memory, which is race condition.
You might move this __syncthreads() at label sync2 to the end of the outer loop for the sake of clarity.
How to use Golang custom scanner string literals and expand memory to load entire file into memory?

How to use Golang custom scanner string literals and expand memory to load entire file into memory?


By : Artem Beyerbakh
Date : March 29 2020, 07:55 AM
Hope this helps Using a scanner if you end up reading the whole file anyway is kind of convoluted. I'd read the whole file and then simply split it into the list of quotes:
code :
package main

import (
    "bytes"
    "io/ioutil"
    "log"
    "math/rand"
    "os"
)

func main() {
    // Slurp file.
    contents, err := ioutil.ReadFile("/Users/bryan/Dropbox/quotes_file.txt")
    if err != nil {
            log.Fatal(err)
    }

    // Split the quotes
    separator := []byte("$$") // Convert string to []byte
    quotes := bytes.Split(contents, separator)

    // Select three random quotes and write them to stdout
    for i := 0; i < 3; i++ {
            n := rand.Intn(len(quotes))
            quote := quotes[n]

            os.Stdout.Write(quote)
            os.Stdout.Write([]byte{'\n'}) // new line, if necessary
    }
}
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