Posts by spRocket
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1)
(Message 8846)
Posted 7 Mar 2025 by spRocket Post: I'm not sure what the problem was, but yesterday I found all of my Raspberry Pis complaining that they couldn't upload. Attempting to get on the forum got a Connection Refused. When I tried to get on at work, the forums worked for a few minutes, then boom, Connection Refused, just as I was trying to post. I then broke out my phone and tried to get on the forums, and was able to bring up one page before being blocked yet again. I guess I must have worn out my welcome somehow? |
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2)
(Message 8708)
Posted 25 Dec 2024 by spRocket Post: Yes it looks like something is not going well with the server. Last time I received any work was 4 days ago for the one Android phone that's on the "compatible" type list here. I'm thinking it's an influx of WCG refugees (like me). World Community Grid is down for the count until January 3 due to a massive data center cooling overhaul and no resources to temporarily move it to another cloud. I wonder if we will see any sort of Christmas bump as well, from people attaching shiny new PCs to the project? Once WCG is back up, my x86 hosts will be going back, but the Raspberry Pi fleet will stay since WCG hasn't had any work for Pis in a long time. Merry Christmas! |
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3)
(Message 8687)
Posted 20 Dec 2024 by spRocket Post: I'm having a bit of trouble with Fedora 40 on a Ryzen 7 4700U APU. It will happily request GPU tasks, but they immediately error out on starting: <core_client_version>7.20.2</core_client_version> <![CDATA[ <message> process exited with code 2 (0x2, -254)</message> <stderr_txt> BOINC client version 7.20.2 BOINC GPU type 'ATI', deviceId=0, slot=6 Application: ../../projects/asteroidsathome.net_boinc/period_search_10218_x86_64-pc-linux-gnu__opencl_101_amd_linux Version: 102.18.0.0 Platform name: AMD Accelerated Parallel Processing Platform vendor: Advanced Micro Devices, Inc. OpenCL device C version: OpenCL C 2.0 | OpenCL 2.0 OpenCL device Id: 0 OpenCL device name: gfx900 27GB Device driver version: 3188.4 (HSA1.1,LC) Multiprocessors: 7 Max Samplers: 5686 Max work item dimensions: 3 Resident blocks per multiprocessor: 5686 Grid dim: 79604 = 2 * 7 * 5686 Block dim: 128 Binary build log for gfx900: Error: Failed to compile opencl source (from CL or HIP source to LLVM IR). (-2) Error creating queue: out of host memory(-6) </stderr_txt> ]]> Except that I have 64 GB RAM and have explicitly reserved 8 GB for video in the BIOS. Here's what I get from clinfo: Number of platforms 1
Platform Name AMD Accelerated Parallel Processing
Platform Vendor Advanced Micro Devices, Inc.
Platform Version OpenCL 2.0 AMD-APP (3188.4)
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_icd cl_amd_event_callback
Platform Extensions function suffix AMD
Platform Name AMD Accelerated Parallel Processing
Number of devices 1
Device Name gfx900
Device Vendor Advanced Micro Devices, Inc.
Device Vendor ID 0x1002
Device Version OpenCL 2.0
Driver Version 3188.4 (HSA1.1,LC)
Device OpenCL C Version OpenCL C 2.0
Device Type GPU
Device Board Name (AMD) AMD Radeon Graphics
Device PCI-e ID (AMD) 0x1636
Device Topology (AMD) PCI-E, 0000:05:00.0
Device Profile FULL_PROFILE
Device Available Yes
Compiler Available Yes
Linker Available Yes
Max compute units 7
SIMD per compute unit (AMD) 4
SIMD width (AMD) 16
SIMD instruction width (AMD) 1
Max clock frequency 1600MHz
Graphics IP (AMD) 9.0
Device Partition (core)
Max number of sub-devices 7
Supported partition types None
Supported affinity domains (n/a)
Max work item dimensions 3
Max work item sizes 1024x1024x1024
Max work group size 256
Preferred work group size (AMD) 256
Max work group size (AMD) 1024
=== CL_PROGRAM_BUILD_LOG ===
Error: AMD HSA Code Object loading failed: HSA_STATUS_ERROR_OUT_OF_RESOURCES: The runtime failed to allocate the necessary resources. This error may also occur when the core runtime library needs to spawn threads or create internal OS-specific events.
Preferred work group size multiple (kernel) <getWGsizes:1980: create kernel : error -46>
Wavefront width (AMD) 64
Preferred / native vector sizes
char 4 / 4
short 2 / 2
int 1 / 1
long 1 / 1
half 1 / 1 (cl_khr_fp16)
float 1 / 1
double 1 / 1 (cl_khr_fp64)
Half-precision Floating-point support (cl_khr_fp16)
Denormals No
Infinity and NANs No
Round to nearest No
Round to zero No
Round to infinity No
IEEE754-2008 fused multiply-add No
Support is emulated in software No
Single-precision Floating-point support (core)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations Yes
Double-precision Floating-point support (cl_khr_fp64)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Address bits 64, Little-Endian
Global memory size 29437693952 (27.42GiB)
Global free memory (AMD) 28747748 (27.42GiB) 28747748 (27.42GiB)
Global memory channels (AMD) 4
Global memory banks per channel (AMD) 4
Global memory bank width (AMD) 256 bytes
Error Correction support No
Max memory allocation 25022039859 (23.3GiB)
Unified memory for Host and Device No
Shared Virtual Memory (SVM) capabilities (core)
Coarse-grained buffer sharing Yes
Fine-grained buffer sharing Yes
Fine-grained system sharing No
Atomics No
Minimum alignment for any data type 128 bytes
Alignment of base address 1024 bits (128 bytes)
Preferred alignment for atomics
SVM 0 bytes
Global 0 bytes
Local 0 bytes
Max size for global variable 25022039859 (23.3GiB)
Preferred total size of global vars 29437693952 (27.42GiB)
Global Memory cache type Read/Write
Global Memory cache size 16384 (16KiB)
Global Memory cache line size 64 bytes
Image support Yes
Max number of samplers per kernel 5686
Max size for 1D images from buffer 65536 pixels
Max 1D or 2D image array size 2048 images
Base address alignment for 2D image buffers 256 bytes
Pitch alignment for 2D image buffers 256 pixels
Max 2D image size 16384x16384 pixels
Max 3D image size 2048x2048x2048 pixels
Max number of read image args 128
Max number of write image args 8
Max number of read/write image args 64
Max number of pipe args 16
Max active pipe reservations 16
Max pipe packet size 3547203379 (3.304GiB)
Local memory type Local
Local memory size 65536 (64KiB)
Local memory size per CU (AMD) 65536 (64KiB)
Local memory banks (AMD) 32
Max number of constant args 8
Max constant buffer size 25022039859 (23.3GiB)
Preferred constant buffer size (AMD) 16384 (16KiB)
Max size of kernel argument 1024
Queue properties (on host)
Out-of-order execution No
Profiling Yes
Queue properties (on device)
Out-of-order execution Yes
Profiling Yes
Preferred size 262144 (256KiB)
Max size 8388608 (8MiB)
Max queues on device 1
Max events on device 1024
Prefer user sync for interop Yes
Number of P2P devices (AMD) 0
Profiling timer resolution 1ns
Profiling timer offset since Epoch (AMD) 0ns (Wed Dec 31 18:00:00 1969)
Execution capabilities
Run OpenCL kernels Yes
Run native kernels No
Thread trace supported (AMD) No
Number of async queues (AMD) 8
Max real-time compute queues (AMD) 8
Max real-time compute units (AMD) 7
printf() buffer size 4194304 (4MiB)
Built-in kernels (n/a)
Device Extensions cl_khr_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_device_attribute_query cl_amd_media_ops cl_amd_media_ops2 cl_khr_image2d_from_buffer cl_khr_subgroups cl_khr_depth_images cl_amd_copy_buffer_p2p cl_amd_assembly_program
NULL platform behavior
clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) AMD Accelerated Parallel Processing
clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [AMD]
clCreateContext(NULL, ...) [default] Success [AMD]
clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) Success (1)
Platform Name AMD Accelerated Parallel Processing
Device Name gfx900
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) Success (1)
Platform Name AMD Accelerated Parallel Processing
Device Name gfx900
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) Success (1)
Platform Name AMD Accelerated Parallel Processing
Device Name gfx900
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.3.2
ICD loader Profile OpenCL 3.0Could this be some sort of permission issue? |
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4)
(Message 8686)
Posted 20 Dec 2024 by spRocket Post: Universe@Home wasn't loading any work on the arm64 architecture despite of the compatibility shown on the BOINC project list. And Einstein@Home is using a lot of RAM memory (~200 MiB per task), which is too much to run on 4 cores when using 1GB RAM devices without having catastrophic crashes all the times (Linux kernels having become completely unable to keep running fine when something uses too much RAM... for a bunch of years already. Seems it's never going to be repaired) The dreaded OOM (out-of-memory) killer, which decides (often wrongly) what to kill when RAM+swap run out. One thing that I found very useful on 1 GB devices is, paradoxically enough, to reserve some of that RAM as compressed swap space (zswap). That worked nicely for having 4x Open Pandemics tasks running on Pi 3s without them stomping on one another. The article below is a good place to start, and I've used the script mentioned in the article to set it up. https://linuxblog.io/raspberry-pi-performance-add-zram-kernel-parameters/ Meanwhile, I've just joined a small fleet of RPis (3xRPi5, 2xRPI400, 1xRPI4), and it was humming along nicely until the tasks ran out. Looks like this is a general problem, as my x86 crunchers are also rapidly running out of tasks. |