All Posts

• Efficient algorithm for minimum Euclidean distance between points in non-overlapping regions in a 2D array March 19, 2025
• Why does the latest clang not define the feature test macro __cpp_coroutines? March 21, 2024
• Stopping the debugger when a NaN floating point number is produced November 30, 2023
• How do I generate random subnormal numbers? December 7, 2022
• Fast 1/X division (reciprocal) October 13, 2022
• How to compute a point on a line in CGAL August 5, 2022
• Solver suggestion for many small quadratic problems in C++ December 19, 2021
• Find Minimum area ellipse enclosing a set of points in c++ November 22, 2021
• Is there a way to optimize/reduce this sequence of assigning variables? (C++) October 2, 2021
• How do you get the medial axis of a multipolygon using CGAL? September 18, 2021
• Code runs perfectly but ends with a segmentation fault after running August 24, 2021
• Need software for generating self-avoiding random walks on a tetrahedral lattice July 25, 2021
• Working with different IEEE floating-point rounding modes in C++ May 8, 2021
• Suppressing warnings in CUDA December 8, 2020
• Is there a "simple" way to have ld output demangled funtion names? September 29, 2020
• C++ Classes for High Performance Computing September 1, 2020
• Reorder vector using a vector of indices July 25, 2020
• OpenMP offloading with GCC fails with "Ptx assembly aborted due to errors" July 11, 2020
• OpenMP offloading says 'fatal error: could not find accel/nvptx-none/mkoffload' July 11, 2020
• Debug Python/C++ program with bad_alloc April 24, 2020
• Multi set in c++ and oops April 20, 2020
• How to store a TB size array in C++ on a cluster April 11, 2020
• Writing code on the CPU while developing, running it on the GPU when live - which approach? February 24, 2020
• MPI_SEND - send structure as vector January 2, 2020
• C++: Allocate memory for an std::vector then initialize its elements in parallel December 17, 2019
• C++ OOP segmentation fault November 28, 2019
• Creating a function the returns frequency of given words in C++ November 25, 2019
• Finding two elements of array with maximum product October 25, 2019
• C++ "No raw loops" without losing perfomance October 23, 2019
• How can I find if and for statements without braces? August 1, 2019
• OpenMP 4.5 won't offload to GPU with target directive July 26, 2019
• What does '&=~' do in c++? June 24, 2019
• OpenMP/__gnu_parallel for an unordered_map June 21, 2019
• Testing if two 12x12 matrices have the same determinant May 22, 2019
• Find a solution of large system of inequalities March 7, 2019
• Simple way to store/read data from file in C++ February 19, 2019
• Why my SSE code is slower than native C++ code? February 7, 2019
• Can someone help me parallelize this C++ Code? February 4, 2019
• C++ Best practices for dealing with many constants, variables in scientific codes February 4, 2019
• fast scrambler for 1Gbit Ethernet December 27, 2018
• How to obtain latitude and longitude from geotiff image using Gdal C++ December 4, 2018
• C++ Multinomial distribution November 24, 2018
• How can I make an unordered set of pairs of integers in C++? September 1, 2018
• C++: Is it more efficient to store data or continually read it August 10, 2018
• Remove finished threads from vector August 3, 2018
• Why is having a single process sort a list so much faster than having many processes sort separate lists of equal size? June 8, 2018
• How to print the faces of a Voronoi diagram? May 5, 2018
• How to convert a voronoi diagram cropped by a rectangle (boundaing box) to a set of polygons? May 5, 2018
• CGAL, Cropped voronoi diagram confined in a rectangle May 5, 2018
• MPI to generate first 20 numbers April 26, 2018
• SIMD optimisation for cross-pattern access April 15, 2018
• C++: ways to free a dynamic array (member of a struct) and a pointer to this struct April 7, 2018
• Intel compiler (ICC) unable to auto vectorize inner loop (matrix multiplication) March 8, 2018
• Printing a map inside a vector February 8, 2018
• Simplify Do While Loop Checking for Null Pointer February 8, 2018
• Concurrent erode or dilate on bitmap February 7, 2018
• Floating point value equality with integral January 24, 2018
• C++ Check if whole string is uppercase January 3, 2018
• Adding elements to vectors safely from C++11 threads December 15, 2017
• Debugging an "Invalid address space" error September 23, 2017
• Use atomic functions in OpenACC September 4, 2017
• Mixing Python and C++ source files in pybind11 August 17, 2017
• Quickly Build Package Repeatedly in R August 17, 2017
• Is there a limit of n bits when bit shifting? August 10, 2017
• How do I combine 4 2-bit values into 1 8-bit value? August 10, 2017
• How to succinctly, portably, and thoroughly seed the mt19937 PRNG? July 13, 2017
• 2D array through classes in C++ July 12, 2017
• C++ parallel average matrix with OpenMP July 8, 2017
• Is it possible to use GCC to compile one section of a code file with specific compiler flags? July 7, 2017
• Is there any way to know the size of what will be printed to standard output in C++? July 7, 2017
• Trying to connect two different types of structures to create linked lists June 30, 2017
• Storing RGB values within a struct c++ June 29, 2017
• How to initialize bitboards in c++? June 26, 2017
• Why does the newline character in an ifstream file - when read by this code - occupy 2 bytes? June 20, 2017
• Sudoku solving in c++ June 19, 2017
• Capture by value with reference parameter modifies captured variable outside expression? June 19, 2017
• Initialize a dynamic array in O(1) time in C/C++ June 16, 2017
• Finding maximum value in each column of a 2-D vector June 16, 2017
• Can I report progress for openmp tasks? June 14, 2017
• Is it possible to do a reduction on an array with openmp? June 14, 2017
• C++: How to specify array length with a static constant variable? June 13, 2017
• Do we need to define bucket count number when construct unordered_map? June 9, 2017
• Reading c++ 2d array in python swig June 8, 2017
• Passing 3D array as parameter into function in C++14 the right way June 7, 2017
• Assigning an integer to a character variable June 6, 2017
• Improving O(n) while looping through a 2d array in C++ June 5, 2017
• Fastest method to check if all elements of 2d array are equal May 31, 2017
• char variable and if statement error C++ May 26, 2017
• OpenMp parallel for May 21, 2017
• Include Git commit hash and/or branch name in C/C++ source May 18, 2017
• "Segfault using proj4 with OpenMP" or "How to use thread-specific globals with OpenMP" April 28, 2017
• Ecology C++ Code April 26, 2017
• Spatial hashing for bounding box March 28, 2017
• Bucket count in unordered_map March 1, 2017
• Multi-Statement Arithmetic in c++ February 27, 2017
• How to process return in OpenMP parallel code? January 27, 2017
• 2D arrays and Coordinates January 25, 2017
• Strange algorithm performance January 23, 2017
• How to use Mersenne Twister to generate all values between two numbers exactly once January 10, 2017
• Seeking open source solution to access rasters in File Geodatabase? August 29, 2016
• Method for generating a random bitset of uniform distribution August 12, 2016
• Undefined reference ... But all is linked August 12, 2016
• Representing 128-bit numbers in C++ August 11, 2016
• How do I determine if two polygons intersect using Clipper? July 14, 2016
• Inserting element into left leaning black red tree c++ May 27, 2016
• Read and write array to compressed file with boost iostreams May 19, 2016
• Sign preserving modular distance May 11, 2016
• Insertion comparison #'s seem too big April 19, 2016
• Android JNI print int64_t to file November 25, 2015
• The first number less than or equal to a needle November 17, 2015
• Counting bits November 6, 2015
• This OpenMP code crashes linux October 13, 2015
• How to find divisor to maximise remainder? October 12, 2015
• Are there standard for Binary Search Tree methods? September 27, 2015
• Check if an Int is in an array C/C++ September 3, 2015
• Using OpenMP in c++ class August 12, 2015
• Android NDK Include Eigen July 29, 2015
• C++ object pointer scope July 11, 2015
• Math - Formula V[i] = ([ V[i-1] * V[i-1] / (i + 2)] + V[ i-1] * i + i + 1) % 666013 May 11, 2015
• Comment extractor March 10, 2015
• Domino path algorithm March 4, 2015
• Calculate median using priority queues March 4, 2015
• How do I use an array of pointers in main? February 27, 2015
• Too many arguments to function call, expected 0, have 1. "InfInt.h" toString function February 27, 2015
• keyboard scan codes in c linux and windows February 27, 2015
• How to compute a signature for a changing `std::map` February 25, 2015
• How Do I Make A Rectangle in GEOS? December 25, 2014
• Abnormal output when using proj4 to transform latlong to UTM December 24, 2014
• Pseudo random number generator gives same first output but then behaves as expected October 20, 2014
• C++ Get random number from 0 to max long long integer April 5, 2014
• checking for a character on the end of a string February 3, 2014
• getting random numbers larger than RAND_MAX January 28, 2014
• Unexpectedly high memory usage, using a std::stack and std::map January 27, 2014
• Creating a program that reads counts the number of lines in a C++ file January 27, 2014
• C++ map access discards qualifiers (const) January 23, 2014
• MiniMax Algorithm for Tic Tac Toe failure January 13, 2014
• OpenMP parallelization stopped working November 19, 2013
• Avoiding Comments w/ C++ getline() October 7, 2013
• g++: error: libgomp.spec: No such file or directory June 14, 2013
• Multithread C++ program to speed up a summatory loop June 14, 2013
• How do you append an int to a string in C++? May 17, 2013
• Linear interpolation code on wikipedia - I don't understand it March 11, 2013
• search and find the shortest queue and search after some condition March 7, 2013
• Distance between two strings February 28, 2013
• Is it possible to return "weird" characters in a char? February 25, 2013
• codes to display a smiley and sad face in C++ console February 8, 2013
• priority queue clear method January 15, 2013
• Visualization from C/C++ via Gnuplot's pipe interface January 13, 2013
• Initializing a vanilla C struct January 10, 2013
• Pointing at an array to get all its contents January 10, 2013
• Are inline operators good? January 9, 2013
• Displaying object name inside destructor January 8, 2013
• Shortest Path distance between points given as X-Y coordinates January 6, 2013
• Is boost::container::vector faster than std::vector? Why? January 2, 2013
• Implementing Depth First Traversal for a Graph using Adjacency Matrix C++ December 30, 2012
• MPI and cluster December 30, 2012
• Implementation of recursive algorithm December 14, 2012
• C++ for loop initializing counter wrong December 12, 2012
• separate sequence of same numbers from string December 12, 2012
• Benchmarking : get algorithm user time December 10, 2012
• 1 byte integer data type December 10, 2012
• Traverse a graph from a starting point and ending at the starting point C++ December 6, 2012
• How to resize a large vector safely in C++ November 23, 2012
• c++ - writing to a output file from diffrent cpp files November 22, 2012
• How To Return A Struct From A Function In C++ November 19, 2012
• How to direct access to the elements of stack in C++? November 17, 2012
• Inbuilt function to find distance November 14, 2012
• Figuring out the formula for two objects in 3d space November 11, 2012
• C++ inheritance for character class November 9, 2012
• Why is the != operator not allowed with OpenMP? November 9, 2012
• C++ solving for quartic roots (fourth order polynomial) October 20, 2012
• adding a string and int to a string October 16, 2012
• Recursive/iterative functions October 14, 2012
• How to iterate over a priority_queue? October 14, 2012
• What's faster: inserting into a priority queue, or sorting retrospectively? May 25, 2012
• Loop asking user for input into an array August 4, 2011