Latest Tech News

Stay updated with the latest in technology, AI, cybersecurity, and more

Filtered by: ptr Clear Filter

Accelerated Game of Life with CUDA / Triton

news.ycombinator.com Unknown 2025-09-22 01:46:02

Let’s look at implementing Conway’s Game of Life using a graphics card. I want to experiment with different libraries and techniques, to see how to get the best performance. I’m going to start simple, and get increasingly complex as we dive in. The Game Of Life is a simple cellular automata, so should be really amenable to GPU acceleration. The rules are simple: Each cell in the 2d grid is either alive or dead. At each step, count the alive neighbours of the cell (including diagonals). If the c

Topics: block_size_row int8_t rowstride tl x_ptr
Read More
Shop Amazon

Byte Type: Supporting Raw Data Copies in the LLVM IR

news.ycombinator.com Pedro Lobo 2025-10-04 04:44:20

GSoC 2025 - Byte Type: Supporting Raw Data Copies in the LLVM IR By Pedro Lobo #GSoC , #clang , #optimizations , #IR 22 minute read This summer I participated in GSoC under the LLVM Compiler Infrastructure. The goal of the project was to add a new byte type to the LLVM IR, capable of representing raw memory values. This new addition enables the native implementation of memory-related intrinsics in the IR, including memcpy , memmove and memcmp , fixes existing unsound transformations and en

Topics: byte i8 load ptr type
Read More
Shop Amazon

Shared_ptr<T>: the (not always) atomic reference counted smart pointer (2019)

news.ycombinator.com Unknown 2025-10-13 16:34:13

shared_ptr<T>: the (not always) atomic reference counted smart pointer Introduction This is a write-up of the “behavioral analysis” of shared_ptr<T> reference count in GNU’s libstdc++. This smart pointer is used to share references to the same underlaying pointer. The mechanism beneath works by tracking the amount of references through a reference count so the pointer gets freed only after the last reference is destructed. It is usually used in multi-threaded programs (in conjunction with oth

Topics: atomic mov ptr rax rbp
Read More
Shop Amazon

Generic Containers in C: Vec

news.ycombinator.com Unknown 2025-12-17 10:04:26

Generic Containers in C: vec Martin Uecker, 2025-07-20 I discuss the implementation of type and bounds safe generic containers in C. Previously, I discussed a span type, and bounds checking using arrays. Here, I will discuss a vector type. A vector type is essentially a resizable array. A vector type could be used as in the following example. int main() { vec(int) *vec_ptr = calloc(1, sizeof *vec_ptr); if (!vec_ptr) // memory out abort(); for (int i = 0; i < 10; i++) vec_push(int, &vec

Topics: int type vec vec_ptr vector
Read More
Shop Amazon

Go allocation probe

news.ycombinator.com Unknown 2025-12-30 08:45:45

Published 2025-07-18 The profiling tools in go will tell you where allocations happened in the code, but won't record the type of the allocation. I suspected that in the code I was looking at, some specific types were causing a lot of allocation but that those allocations were spread over many locations. So with the help of Matt Knight I wrote perhaps the most appallingly fragile code I have ever written - go_allocation_probe. Every heap allocation in go afaict goes through a single function -

Topics: nameoff size typ type typeptr
Read More
Shop Amazon

Go Allocation Probe

news.ycombinator.com Unknown 2025-12-30 20:45:45

Published 2025-07-18 The profiling tools in go will tell you where allocations happened in the code, but won't record the type of the allocation. I suspected that in the code I was looking at, some specific types were causing a lot of allocation but that those allocations were spread over many locations. So with the help of Matt Knight I wrote perhaps the most appallingly fragile code I have ever written - go_allocation_probe. Every heap allocation in go afaict goes through a single function -

Topics: nameoff size typ type typeptr
Read More
Shop Amazon

New Android TapTrap attack fools users with invisible UI trick

bleepingcomputer.com Unknown 2026-01-26 12:39:25

A novel tapjacking technique can exploit user interface animations to bypass Android's permission system and allow access to sensitive data or trick users into performing destructive actions, such as wiping the device. Unlike traditional, overlay-based tapjacking, TapTrap attacks work even with zero-permission apps to launch a harmless transparent activity on top of a malicious one, a behavior that remains unmitigated in Android 15 and 16. TapTrap was developed by a team of security researcher

Topics: android animation app taptrap user
Read More
Shop Amazon
Trending Topics
Hot Now
ai 3583 apple 2975 new 2359 google 1991 content 1710
Popular
like 1476 company 1408 pro 1305 iphone 1128 app 1113 zdnet 1094 said 1043 data 1036 does 896 reviews 882
Emerging
editorial 861 amazon 854 game 800 samsung 764 phone 756 pixel 754 android 730 just 712 available 680 users 676
About GoKawiil

GoKawiil is a project by nerdhub.co that curates technology news from trusted sources. We built this site to provide a cleaner, more mobile-friendly experience without intrusive ads or heavy JavaScript.

Privacy

Your privacy matters. GoKawiil doesn't use Google Analytics or Facebook Pixel. The only tracking occurs through affiliate links to Amazon.

Advertising

Interested in advertising? Contact us at [email protected]