George Hotz | Programming | tinygrad: RDNA3 assembly | unstable AMD drivers | crashes | Part 1

Name: George Hotz | Programming | tinygrad: RDNA3 assembly | unstable AMD drivers | crashes | Part 1
Uploaded: 2023-05-08T00:13:40Z
Channel: george hotz archive
Description: Date of stream 6 May 2023. from $1499 buy https://comma.ai/shop/comma-three Live-stream chat added as Subtitles/CC - English (Twitch Chat) - three-dot m...

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Date of stream 6 May 2023. from $1499 buy https://comma.ai/shop/comma-three Live-stream chat added as Subtitles/CC - English (Twitch Chat) - three-dot menu icon - Show transcript Source files: - https://github.com/geohot/tinygrad Follow for notifications: - https://twitch.tv/georgehotz Support George: - https://twitch.tv/subs/georgehotz Chapters: 00:00:00 red vs green,rocm bugs 00:01:30 7900xtx true flops,mojo,opencl 00:03:00 bad assembler,v_dual_fnac_f32,ashrrev_i32_e32 00:04:30 epyc,nice amd gpu,rocm-bandwith-test 00:05:28 NULL pointer,reboot,cox modem 00:07:00 not optimized,cheapETH 00:0…

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Chapters (32)

red vs green,rocm bugs

1:30 7900xtx true flops,mojo,opencl

3:00 bad assembler,v_dual_fnac_f32,ashrrev_i32_e32

4:30 epyc,nice amd gpu,rocm-bandwith-test

5:28 NULL pointer,reboot,cox modem

7:00 not optimized,cheapETH

9:05 how gpu work,warps,simd,DSP,GPU,CPU,load,not a load

10:55 WGP=2CU,warp,dual issue VALU

12:10 assembly,extra,rdna3,enable_early_exec,kernel

13:05 staging worse,compiling empty program,binary out,stuff to compile rocm

14:55 llvm-objdump -d cc.elf,asm.py,llvm-mc,obj file,lld

17:04 failed to get code object ISA,llvm-readelf cc.elf

18:25 shader from RDNA3,tensor vs non tensor cores float32,llvm target to amdgpu

19:45 llvm target triples,failed to get metadata

21:55 wavefront_size,how wide simd path is,NT_AMDGPU_METADATA,MsgPack binary

23:45 amd_comgr_get_data_metadata,kernel crash,rmmod amdgpu,reseting pci

28:15 metadata,wavefront_size 128,failed to read ip discovery

30:35 git assembler maybe,removing the bus,reboot

32:20 dkms,stock ubuntu 22.04 kernel,connecting bmc

33:50 connection not private,thisisunsafe

35:20 event_log,pci serr critical error

36:50 debugfs to restart gpu,bmc remote kvm

43:30 case,pcie errors

45:22 we buy Intel+Nvidia,want to like AMD

46:00 asm.py OUT_OF_HOST_MEMORY,AMD_LOG_LEVEL=4,roadata

54:20 llvm,gnu export symbol,.global

57:50 symbol code.kd,word gnu assembler

1:04:40 OBJECT FUNC symbol type assembler,.type code.kd,STT_OBJECT

1:09:00 why AMD,creating a buffer

1:11:25 args,running custom assembly

1:15:00 memory access fault by GPU node-1

1:26:30 working,test number 2,commit custom asm,cras

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George Hotz | Programming | tinygrad: RDNA3 assembly | unstable AMD drivers | crashes | Part 1

Chapters (32)

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