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I have login transactions in my JMeter which has 20 requests in it. few requests run parallely and few of them in line when I observed in developer tools network tab. My issue, jmeter is running all ...
Mrunalini Kancharla's user avatar
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1 answer
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I've written a piece of code that aims to encode into and decode base64 characters. So far, my code is working, but I've been made aware of the risk of a data race in a previous code of mine, and I ...
Dave Shah's user avatar
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1 answer
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I am trying to learn about rayon's thread pool. And to that effect I want to make a simple program where a set of tasks is added to the pool, and then when the last task in that batch executes it adds ...
Makogan's user avatar
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REST API is based on HTTP, which is inherently synchronous, meaning, a client makes request, and he is meant to get the full answer (from OSI application layer point of view), and not some request ...
Student4K's user avatar
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Good morning, I was trying to parallelize a loop with OMP in a program I created for a flood simulator with the goal of achieving a performance boost. The loop I want to parallelize is as follows: #...
NaeSs's user avatar
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I have many number of data frames up to 10. I need to compare 10 data frames with other 10 data frames which are independent to each other. Each of data frame has a specific keys to be compared. ...
vinamrata's user avatar
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-2 votes
1 answer
159 views

I'm attempting to copy a table from an on-premises SQL Server to Azure Storage using a data pipeline in Fabric. The table consists of 5 columns and 1000 rows, with all columns being of type varchar. ...
Sudheesh Nagamalla's user avatar
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1 vote
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65 views

I have defined a Bayesian A/B test power analysis (sample size calculator) using cmdstanr. Since it is a computationally expensive process, I tried to save output as each loop ended in foreach. ...
Sweepy Dodo's user avatar
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3 votes
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I need to use a function like cudaDeviceSynchronize to wait for a kernel to finish execution. However after version 11.6, it is no longer possible to use any form of synchronization within device ...
ug0x01's user avatar
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Sorry for the long message, but I was wondering if you could give me some advice. What I want to achieve is to handle tree-structured data in the nim language using tasks with the nim-taskpool package....
vert2air's user avatar
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0 answers
104 views

I am encountering an issue with writing integration tests in Rust for an application that uses a database (PostgreSQL managed via SeaORM). Some of my tests need to use the database to be properly ...
spacecodeur's user avatar
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2 votes
1 answer
150 views

I want to implement CDP for a basic forward function (I will call the forward function too many times at the same time (also from a CUDA function) and because of that I want to use CDP) Here's the ...
ug0x01's user avatar
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I've been coding a Genetic Algorithm to solve TSP using python's DEAP library. I've implemented my own Graph class, and an Algorithm class that runs the GA on a Graph instance. However, when adding ...
lovethefrogs's user avatar
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I have a slow running function that I execute in multiple settings in parallel using doFuture together with foreach. I would like to receive regular progress updates from each execution using ...
Lukas D. Sauer's user avatar
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1 answer
133 views

I tried to understand how scipy.linalg.solve works and if it involves parallel computing. If yes, can someone give me more information? Also, I would like to know: if we want to compute the inverse ...
Chaimae Lsi's user avatar
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0 answers
83 views

I'm trying to build a scientific computing software with Rust, which requires manipulation of the matrix during operation. A typical matrix operation is to append sub-blocks of small matrices to a ...
Mike's user avatar
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0 answers
253 views

I'm trying to execute the following C++ multi-threaded program on WSL2: #include <iostream> #include <pthread.h> #define N 1024*1024*1024 #define num_threads 8 using namespace std; long x[...
Omair Siddique's user avatar
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1 vote
1 answer
100 views

I have written a bash script that: gets the latest Github CI/CD run checks the digest of downloaded artefacts spawns a process to download and extract each artefact (in parallel) if digest has ...
Kris Rice's user avatar
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2 votes
0 answers
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Consider three versions of the following Fortran code using coarrays Version 1: program test implicit none integer :: dp = kind(0.d0) complex(dp), allocatable :: G(:,:,:,:,:,:,:)[:] ...
Kai's user avatar
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I am working on a Flutter project where I need to download 5000 images (each 2500x2500 px) as fast as possible, ideally within 30 seconds. These images are fetched from Lorem Picsum and stored in the ...
Jay Bhardiya's user avatar
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-1 votes
2 answers
146 views

I'm trying to get to run two parallel asynchronous processes in a loop, one main and one via COPROC, in order to be able to collect and synchronize results, when both have finished (for each loop), to ...
fozzybear's user avatar
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2 votes
0 answers
48 views

I implemented a kernel that performs a single-pass scan (proposed in the book Programming Massively Parallel Processors): __global__ void SinglePassKoggeStoneScan(const unsigned int * input, unsigned ...
naruto98's user avatar
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There is a job I want to run on slurm that needs parallelization because it is otherwise too slow. Even though the computations are independent of each other, they don't happen at the beginning of the ...
dolefeast's user avatar
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1 answer
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I'm working on an R script to build a correlation matrix based on values extracted from WorldClim bioclimatic layers at specific geographic coordinates (WGS84). I have a dataset (db) with 842 obs. of ...
Anderson David Ocampos Valarez's user avatar
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1 answer
166 views

I'm using MSTest with parallel execution at the class level in my .runsettings file. Some test classes handle web tests, while others perform the same operations without web tests. The Issue In ...
Mustapha BOUFARA's user avatar
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0 answers
52 views

I am in the process of building an effect system DSL with F# inspired by ZIO and Cats Effect. I have my effect type defined as a DU of opcodes, a fiber type, a channel type for message passing, etc. I ...
iyyel's user avatar
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0 answers
82 views

I'm working on a Java application where I need to periodically check a MongoDB collection (CacheBilgi) and enqueue new data into a concurrent queue (cacheInfoQueue). Then, I need to process this queue ...
Requiet's user avatar
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0 answers
46 views

I am running a very simple script in Databricks: try: spark.sql(""" DELETE FROM raw.{} WHERE databasename = '{}'""".format(raw_json, dbsourcename)) ...
codingnoob's user avatar
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1 vote
0 answers
26 views

I'm working on a PowerShell script that needs to use ForEach-Object -Parallel to run several iterations of a process simultaneously. Here's my code (with names changed to protect the innocent). Right ...
Luke in IT's user avatar
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0 votes
1 answer
55 views

I want to run several class instances in parallel and update the instance attributes using Redis. On each class instance, I run a thread in the background to listen to redis for changes. When I run ...
birdalugur's user avatar
  • 307
0 votes
0 answers
30 views

I have a function apply_dask_function() that I use to apply the function dask_function() on a xarray dataset (ds_example). dask_function() takes 3 inputs, which are two 1D arrays (length "time&...
vdc's user avatar
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0 answers
40 views

I am estimating a static Copula-EGARCH model using the rmgarch package in R. My dataset consists of 58 univariate time series over 2274 days. The model specification is as follows: # Static Copula-...
Barbab's user avatar
  • 276
3 votes
1 answer
70 views

Question: In R or RStudio, if a user aborts an ongoing calculation (by clicking the stop sign or pressing esc), on.exit is not called. Is there a way such that if the user presses esc, a certain ...
Said's user avatar
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1 vote
0 answers
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I have a problem running my slurm code (I am quite a newbie). I am trying to run slurm with tasks in parallel in the same job, lets call them task1, task2, ..., task28, with jobs in parallel. The srun ...
Marco Seracini's user avatar
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0 answers
164 views

I am trying to use PySCF for electronic structure calculations and was curious about the parallelization schemes available to get the best performance. I've installed PySCF via Spack, which included ...
Anson Thomas's user avatar
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2 votes
1 answer
135 views

I have a CSV File that is too large to fit in RAM, and only barely fits on my hard disk. I need to split this CSV file into parts. I am using BufferedReader.lines() to stream the file, and now I would ...
davidalayachew's user avatar
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0 votes
1 answer
124 views

Question I am trying to develop a clear mental model for using SLURM to request resources on HPC systems for hybrid MPI/OpenMP jobs. In thinking about it more, I realized there are some gaps in my ...
Jared's user avatar
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0 answers
66 views

I'm having some difficulty setting up parallel computing with a progress bar in R. I tried using the doSNOW package following the solution here, but no progress bar appeared. The code also took over ...
Kristin's user avatar
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0 votes
1 answer
97 views

I have some code that cycles through some files and then makes subsequent calls to a "chain" of multiple APIs using contents from each file, where each API needs the output of the previous ...
Omega's user avatar
  • 125
1 vote
1 answer
55 views

I regularly make use of the packages parallel and pbapply. However, I have come across some odd behavior that I assume is by design, but I can't figure out how to work around it. Basically, if I use a ...
FSU79's user avatar
  • 55
1 vote
1 answer
108 views

I am trying to parallelize my code using HPX in order to improve performance. Below is the original code and my attempt to refactor it using HPX. Original Code: std::vector<std::vector<std::pair&...
tlparolin's user avatar
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0 votes
0 answers
50 views

I am attempting to implement a method in MPI for a well established particle simulation program that involves image processing. The program runs a loop for millions of iterations that performs a ...
William Betancourt's user avatar
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0 votes
0 answers
47 views

I have to run a simulation study for a model we developed in my phd. I have 64 simulation settings consisting of combinations of different parameters and sample sizes (1000 or 10,000), and I want to ...
kenny's user avatar
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0 votes
0 answers
61 views

I am trying to use parallelism for my code, when I execute it on Windows everything runs fine, but I need to use a Linux cluster and there all the values are just NaN, I executed every individual part ...
Tomas Rodriguez's user avatar
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0 votes
1 answer
102 views

I have some code in terra that I'm running using the future/future.apply package but I'm running into some memory issues (Error in eval(expr, p) : std::bad_alloc). I'm using the future package's "...
ailich's user avatar
  • 112
-1 votes
1 answer
95 views

I am working on a Python project where I need to process a large CSV file using Polars. Currently, I am reading the CSV file inside each parallel process, which works but is inefficient because the ...
Pedro_Siqueira's user avatar
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0 votes
1 answer
69 views

I found this interesting function, ForEach-Parallel that works in PowerShell v5. It's part of the repo chocolatey-oneget-provider at GitHub that I've tried to improve upon. The reason I'm not using ...
Dennis's user avatar
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0 votes
1 answer
81 views

Background Let's say I have a complex MPI program with multiple message passing events and computations. The communication pattern is that of bidirectional ring messaging as shown in the figure below. ...
Nitin Malapally's user avatar
  • 648
0 votes
0 answers
85 views

I have a Python script that processes a batch of CSV files in parallel. Each input CSV has exactly 200 rows, so I use an if num_videos == 200: check to run a function like: if num_videos == 200: ...
ララララ's user avatar
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0 votes
0 answers
21 views

I would like to repeatedly use a function that calls on clusters from Rmpi, but I am having issues where the first function call hangs indefinitely. Here is a simple code example: library(parallel) ...
user29197152's user avatar
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