# General **URL:** https://forum.modular.com/c/general/4.md [Latest](https://forum.modular.com/latest.md) · [Categories](https://forum.modular.com/categories.md) · [Tags](https://forum.modular.com/tags.md) --- ## [About the General category](https://forum.modular.com/t/about-the-general-category/3)
**Author:** [@system](https://forum.modular.com/u/system)\ **Replies:** 0\ **Last updated:** [December 2, 2024, 8:24pm UTC](https://forum.modular.com/t/about-the-general-category/3 "2024-12-02T20:24:32Z")
Questions and discussion that don’t fit into other categories --- ## [Plans for open-sourcing the GPU runtime (MLRT)?](https://forum.modular.com/t/plans-for-open-sourcing-the-gpu-runtime-mlrt/3575)
**Author:** [@gonsolo](https://forum.modular.com/u/gonsolo)\ **Replies:** 3\ **Last updated:** [October 23, 2026, 5:38am UTC](https://forum.modular.com/t/plans-for-open-sourcing-the-gpu-runtime-mlrt/3575 "2026-10-23T05:38:12Z")
Hi all, Thanks for open-sourcing the compiler! While looking into GPU backends, I noticed that DeviceContext still comes as a prebuilt libAsyncRTMojoBindings.so from the max-core wheel. In bazel/api.bzl, //MLRT:Driver/D… --- ## [Releasing νMAX: numpy + scipy on MAX written in Mojo](https://forum.modular.com/t/releasing-max-numpy-scipy-on-max-written-in-mojo/3467)
**Author:** [@Ehsan](https://forum.modular.com/u/Ehsan)\ **Replies:** 7\ **Last updated:** [October 1, 2026, 5:47am UTC](https://forum.modular.com/t/releasing-max-numpy-scipy-on-max-written-in-mojo/3467 "2026-10-01T05:47:42Z")
νMAX (pronounced numax), is a numerical/scientific computing library built on MAX and Mojo. Context: My background is in scientific computing so I started this as a personal project as a way to actually use MAX kerne… --- ## [Flare: Full networking stack for Mojo](https://forum.modular.com/t/flare-full-networking-stack-for-mojo/3089)
**Author:** [@Ehsan](https://forum.modular.com/u/Ehsan)\ **Replies:** 4\ **Last updated:** [October 1, 2026, 3:35am UTC](https://forum.modular.com/t/flare-full-networking-stack-for-mojo/3089 "2026-10-01T03:35:44Z")
Happy to announce v0.7 release of flare with Mojo 1.0.0b1. Flare is a full networking stack written in Mojo. HTTP/1.1, HTTP/2, WebSocket (RFC 6455), TLS 1.2/1.3 with ALPN, TCP, UDP, Unix sockets, and DNS, all on top of … --- ## [Why doesn't Mojo have \`let\` (immutable data)? Just wondering](https://forum.modular.com/t/why-doesnt-mojo-have-let-immutable-data-just-wondering/3510)
**Author:** [@BoldCrane38](https://forum.modular.com/u/BoldCrane38)\ **Replies:** 2\ **Last updated:** [September 20, 2026, 6:41am UTC](https://forum.modular.com/t/why-doesnt-mojo-have-let-immutable-data-just-wondering/3510 "2026-09-20T06:41:46Z")
Why doesn’t Mojo have let (immutable data)? Just wondering --- ## [Primary constructor](https://forum.modular.com/t/primary-constructor/3511)
**Author:** [@BoldCrane38](https://forum.modular.com/u/BoldCrane38)\ **Replies:** 1\ **Last updated:** [September 20, 2026, 1:40am UTC](https://forum.modular.com/t/primary-constructor/3511 "2026-09-20T01:40:40Z")
struct St\[T: AnyType\]{ # Declares both fields a and b. var a: T, var b: T } # Use here something like @ or params, idk @( # Doesn't declare a field. It are regular parameter to be used inside the struct block p1: I… --- ## [Why doesn't Mojo have struct pattern (destructuring)? Just wondering](https://forum.modular.com/t/why-doesnt-mojo-have-struct-pattern-destructuring-just-wondering/3509)
**Author:** [@BoldCrane38](https://forum.modular.com/u/BoldCrane38)\ **Replies:** 1\ **Last updated:** [September 20, 2026, 1:38am UTC](https://forum.modular.com/t/why-doesnt-mojo-have-struct-pattern-destructuring-just-wondering/3509 "2026-09-20T01:38:25Z")
Why doesn’t Mojo have struct pattern (destructuring)? Just wondering --- ## [Introduce yourself 👋](https://forum.modular.com/t/introduce-yourself/51)
**Author:** [@Modular](https://forum.modular.com/u/Modular)\ **Replies:** 49\ **Last updated:** [September 16, 2026, 7:15pm UTC](https://forum.modular.com/t/introduce-yourself/51 "2026-09-16T19:15:39Z")
Thanks for stopping by! Let’s get to know each other. Reply to this thread with: Your name What brought you here A random fact about yourself Anything else you’d like to share! --- ## [Debugging example in GPU Puzzles (p09) is outdated](https://forum.modular.com/t/debugging-example-in-gpu-puzzles-p09-is-outdated/3472)
**Author:** [@juandcf](https://forum.modular.com/u/juandcf)\ **Replies:** 0\ **Last updated:** [September 6, 2026, 10:56pm UTC](https://forum.modular.com/t/debugging-example-in-gpu-puzzles-p09-is-outdated/3472 "2026-09-06T22:56:49Z")
Copy-pasting here what I wrote on the Discord Mojo channel: Hello, I have a basic question about gpu puzzles, specifically the Debugging example. Trying to follow the steps in Problem 9 - Essentials but cannot access th… --- ## [How to remove tcmalloc error on aarch64](https://forum.modular.com/t/how-to-remove-tcmalloc-error-on-aarch64/2249)
**Author:** [@Anil](https://forum.modular.com/u/Anil)\ **Replies:** 11\ **Last updated:** [August 28, 2026, 11:36am UTC](https://forum.modular.com/t/how-to-remove-tcmalloc-error-on-aarch64/2249 "2026-08-28T11:36:03Z")
While trying to run mojo on aarch64 gives the following error, and for me its not possible to install server edition of Ubuntu with 48bit memory address space. 17555 external/tcmalloc+/tcmalloc/system-alloc.h:575\] MmapA… --- ## [Book: Mojo By Example is updated to 1.0](https://forum.modular.com/t/book-mojo-by-example-is-updated-to-1-0/3398)
**Author:** [@ivellapillil](https://forum.modular.com/u/ivellapillil)\ **Replies:** 0\ **Last updated:** [August 13, 2026, 5:07pm UTC](https://forum.modular.com/t/book-mojo-by-example-is-updated-to-1-0/3398 "2026-08-13T17:07:47Z")
Hi all, Congratulations on release of Mojo 1.0! New update has been released for the book Mojo By Example. You can find the latest at: Mojo By Example: A Comprehensive Introduction to the Mojo Programming Language I h… --- ## [Flare, json, sqlite, mozz, morph, uuid, pprint, envo, tempo and mojodoc are update to Mojo 1.0.0](https://forum.modular.com/t/flare-json-sqlite-mozz-morph-uuid-pprint-envo-tempo-and-mojodoc-are-update-to-mojo-1-0-0/3394)
**Author:** [@Ehsan](https://forum.modular.com/u/Ehsan)\ **Replies:** 0\ **Last updated:** [August 12, 2026, 4:21am UTC](https://forum.modular.com/t/flare-json-sqlite-mozz-morph-uuid-pprint-envo-tempo-and-mojodoc-are-update-to-mojo-1-0-0/3394 "2026-08-12T04:21:05Z")
Since Mojo :fire: 1.0 is here , all of my libraries have been updated to mojo\>=1.0.0\<1.1.0 and use stable conda channel from now. flare v0.10.0: Full stack networking library for Mojo json v0.3.0: High-performance JSON… --- ## [Proposal: Fat-Arrow (\`=\>\`) Closures](https://forum.modular.com/t/proposal-fat-arrow-closures/3364)
**Author:** [@qja](https://forum.modular.com/u/qja)\ **Replies:** 2\ **Last updated:** [August 2, 2026, 1:07pm UTC](https://forum.modular.com/t/proposal-fat-arrow-closures/3364 "2026-08-02T13:07:30Z")
Proposal: Fat-Arrow (=\>) Closures 1. Syntax & Semantics Mojo adopts =\> as a structural anchor to support anonymous functions without the lambda keyword or C-style curly braces. A. Single-Line Form (Implicit Return) Sing… --- ## [\`professor\`: Instrumentation based profiling library](https://forum.modular.com/t/professor-instrumentation-based-profiling-library/3334)
**Author:** [@gsmyridis](https://forum.modular.com/u/gsmyridis)\ **Replies:** 1\ **Last updated:** [July 20, 2026, 2:30pm UTC](https://forum.modular.com/t/professor-instrumentation-based-profiling-library/3334 "2026-07-20T14:30:27Z")
Hi everyone, For the past few months I have been working on professor, an instrumentation profiling library for Mojo, and I think with your feedback and contribution could shape into something that will be useful for th… --- ## [Tree-Sitter for Mojo Programming Language](https://forum.modular.com/t/tree-sitter-for-mojo-programming-language/3335)
**Author:** [@AK-MI](https://forum.modular.com/u/AK-MI)\ **Replies:** 1\ **Last updated:** [July 19, 2026, 4:30am UTC](https://forum.modular.com/t/tree-sitter-for-mojo-programming-language/3335 "2026-07-19T04:30:40Z")
request to provide official MOJO programming Language syntax tree-sitter, which will be useful for other editors than Vs code --- ## [What is the realistic roadmap for integrated GPU support on Intel and ARM64 SoCs?](https://forum.modular.com/t/what-is-the-realistic-roadmap-for-integrated-gpu-support-on-intel-and-arm64-socs/3040)
**Author:** [@pauljurczak](https://forum.modular.com/u/pauljurczak)\ **Replies:** 3\ **Last updated:** [July 3, 2026, 9:38pm UTC](https://forum.modular.com/t/what-is-the-realistic-roadmap-for-integrated-gpu-support-on-intel-and-arm64-socs/3040 "2026-07-03T21:38:10Z")
I know that this is not on top of the to-do list at this moment, but it could be a powerful unifying way of developing GPGPU code on embedded systems. Setting aside a wide variety of NPUs present on many modern SoCs, bot… --- ## [Book: Mojo By Example is now updated with changes corresponding to Mojo 1.0.b2](https://forum.modular.com/t/book-mojo-by-example-is-now-updated-with-changes-corresponding-to-mojo-1-0-b2/3242)
**Author:** [@ivellapillil](https://forum.modular.com/u/ivellapillil)\ **Replies:** 6\ **Last updated:** [June 25, 2026, 4:58pm UTC](https://forum.modular.com/t/book-mojo-by-example-is-now-updated-with-changes-corresponding-to-mojo-1-0-b2/3242 "2026-06-25T16:58:19Z")
Hi all, New update has been released for the book Mojo By Example. You can find the latest at: Mojo By Example: A Comprehensive Introduction to the Mojo Programming Language I have updated the book with the new languag… --- ## [Compiler OOM on DGX Spark GB10 / Unified Memory machines even for 0.5b size models](https://forum.modular.com/t/compiler-oom-on-dgx-spark-gb10-unified-memory-machines-even-for-0-5b-size-models/3264)
**Author:** [@gchauhan](https://forum.modular.com/u/gchauhan)\ **Replies:** 0\ **Last updated:** [June 21, 2026, 11:06pm UTC](https://forum.modular.com/t/compiler-oom-on-dgx-spark-gb10-unified-memory-machines-even-for-0-5b-size-models/3264 "2026-06-21T23:06:39Z")
On DGX Spark GB10 and Unified memory machines, the default settings for MODULAR\_DEVICE\_CONTEXT\_MEMORY\_MANAGER\_SIZE\_PERCENT=90 result in compiler OOMing even for very small models like Qwen/Qwen2.5-0.5B-Instruct. After s… --- ## [Seeking Peer Review: Math Derivations for GPT-2 Backpropagation in llm.mojo](https://forum.modular.com/t/seeking-peer-review-math-derivations-for-gpt-2-backpropagation-in-llm-mojo/3251)
**Author:** [@ulmentflam](https://forum.modular.com/u/ulmentflam)\ **Replies:** 0\ **Last updated:** [June 17, 2026, 8:55pm UTC](https://forum.modular.com/t/seeking-peer-review-math-derivations-for-gpt-2-backpropagation-in-llm-mojo/3251 "2026-06-17T20:55:51Z")
Hi Everyone, In honor of Mojo v1.0.0’s imminent arrival, I am working on implementing backpropagation and autograd for an updated version of llm.mojo, which is a pure-Mojo implementation of GPT-2/3 inspired by Andrej Ka… --- ## [NPU and other exotic accelerator support](https://forum.modular.com/t/npu-and-other-exotic-accelerator-support/3243)
**Author:** [@Curious](https://forum.modular.com/u/Curious)\ **Replies:** 5\ **Last updated:** [June 17, 2026, 1:46pm UTC](https://forum.modular.com/t/npu-and-other-exotic-accelerator-support/3243 "2026-06-17T13:46:09Z")
Hello Modular forumites, Out of sheer curiosity, is there anything in the Mojo/Max stack or even in MLIR that would prevent the Modular stack to support NPUs (Q.ANT) which already support C++, Python etc.? --- ## [How exactly does Modular / Mojo extend beyond CPU and GPU](https://forum.modular.com/t/how-exactly-does-modular-mojo-extend-beyond-cpu-and-gpu/3245)
**Author:** [@mshockwave](https://forum.modular.com/u/mshockwave)\ **Replies:** 4\ **Last updated:** [June 15, 2026, 8:00pm UTC](https://forum.modular.com/t/how-exactly-does-modular-mojo-extend-beyond-cpu-and-gpu/3245 "2026-06-15T20:00:18Z")
I’d just read through the “Democratizing AI Compute” blog post series. Part 1 to 9 are amazing, part 10 is well written but I fee like it is a bit hand-waving on the “killer feature” of Modular / Mojo’s solution to all t… --- ## [Max llm tutorial bug](https://forum.modular.com/t/max-llm-tutorial-bug/3225)
**Author:** [@alix](https://forum.modular.com/u/alix)\ **Replies:** 4\ **Last updated:** [June 13, 2026, 6:18am UTC](https://forum.modular.com/t/max-llm-tutorial-bug/3225 "2026-06-13T06:18:58Z")
alexjacob@ho-sm-ai-proxy02:~/research/max-llm-book$ pixi run serve WARN the lock file is up-to-date but uses an older format (v6), run pixi lock to upgrade to v7 for improved reproducibility :sparkles: Pixi task (serve… --- ## [Mojo docs example possibly out of date](https://forum.modular.com/t/mojo-docs-example-possibly-out-of-date/3235)
**Author:** [@darenc](https://forum.modular.com/u/darenc)\ **Replies:** 3\ **Last updated:** [June 12, 2026, 7:31pm UTC](https://forum.modular.com/t/mojo-docs-example-possibly-out-of-date/3235 "2026-06-12T19:31:23Z")
Maybe this fits here - I’m not really sure. I did post on the Discord as well. System requirements | Mojo has a check\_gpu.mojo file that looks like this: from gpu.host import DeviceContext def main(): var ctx = De… --- ## [A bug in 1.0.0B1](https://forum.modular.com/t/a-bug-in-1-0-0b1/3153)
**Author:** [@RobertD](https://forum.modular.com/u/RobertD)\ **Replies:** 2\ **Last updated:** [June 9, 2026, 5:07pm UTC](https://forum.modular.com/t/a-bug-in-1-0-0b1/3153 "2026-06-09T17:07:29Z")
Source code: from std.memory import Pointer def main(): var my\_val = 100 var my\_p = Pointer(to=my\_val) print(my\_p) print(\*my\_p) Please submit a bug report to Issues · modular/modular · GitHub and include the crash… --- ## [Software Pipelining for GPU Kernels series](https://forum.modular.com/t/software-pipelining-for-gpu-kernels-series/3117)
**Author:** [@steepcurve](https://forum.modular.com/u/steepcurve)\ **Replies:** 1\ **Last updated:** [May 28, 2026, 3:03pm UTC](https://forum.modular.com/t/software-pipelining-for-gpu-kernels-series/3117 "2026-05-28T15:03:59Z")
It’s been a while since Part 1 of this blog series was published. Is there a timeline for future updates? --- ## [Mojo-kafka — Apache Kafka client for Mojo over librdkafka](https://forum.modular.com/t/mojo-kafka-apache-kafka-client-for-mojo-over-librdkafka/3067)
**Author:** [@dvirarad](https://forum.modular.com/u/dvirarad)\ **Replies:** 0\ **Last updated:** [May 12, 2026, 12:29pm UTC](https://forum.modular.com/t/mojo-kafka-apache-kafka-client-for-mojo-over-librdkafka/3067 "2026-05-12T12:29:07Z")
Hey folks :waving\_hand: I’ve been pulling Kafka data into Python-based ML pipelines for years and have wanted to drop the Python hop on the hot path for a while. Mojo seemed like the natural place to do it — but there w… --- ## [Puzzle 29 Barriers](https://forum.modular.com/t/puzzle-29-barriers/3043)
**Author:** [@BeastBritish](https://forum.modular.com/u/BeastBritish)\ **Replies:** 1\ **Last updated:** [May 8, 2026, 7:04pm UTC](https://forum.modular.com/t/puzzle-29-barriers/3043 "2026-05-08T19:04:11Z")
Should all threads be synchronized after the barrier initialization and before participating in the barrier just like in an Nvidia Asynchronous Barriers example https://docs.nvidia.com/cuda/cuda-programming-guide/04-spe… --- ## [MojoLang and MAX Open Source & Licensing Clarification: GPU Limits and Scaling](https://forum.modular.com/t/mojolang-and-max-open-source-licensing-clarification-gpu-limits-and-scaling/3000)
**Author:** [@qdaicho](https://forum.modular.com/u/qdaicho)\ **Replies:** 2\ **Last updated:** [May 5, 2026, 3:50pm UTC](https://forum.modular.com/t/mojolang-and-max-open-source-licensing-clarification-gpu-limits-and-scaling/3000 "2026-05-05T15:50:59Z")
I’m trying to fully understand the licensing model for MAX and Mojo, especially around hardware support and scaling. From what I’ve read, it seems like everything is free for development and even commercial production wh… --- ## [Gemma 4 31b ms / token calculation](https://forum.modular.com/t/gemma-4-31b-ms-token-calculation/3012)
**Author:** [@anandtyagi](https://forum.modular.com/u/anandtyagi)\ **Replies:** 2\ **Last updated:** [April 30, 2026, 7:48pm UTC](https://forum.modular.com/t/gemma-4-31b-ms-token-calculation/3012 "2026-04-30T19:48:43Z")
I tried Gemma 4 31b through the website and the response took a few seconds, but the timing came back as 0.1 ms/tok . This implies 10k tok / s which isn’t possible given the output was less than 100 tokens but took more… --- ## [Time series on max](https://forum.modular.com/t/time-series-on-max/2943)
**Author:** [@0xaut](https://forum.modular.com/u/0xaut)\ **Replies:** 1\ **Last updated:** [April 21, 2026, 12:19pm UTC](https://forum.modular.com/t/time-series-on-max/2943 "2026-04-21T12:19:49Z")
Looking to build something on time series using max, any pointers? [Next page](https://forum.modular.com/c/general/4.md?page=1)