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Ludovic Henry luhenry

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luhenry / cross-compiling-pytorch-on-riscv.md
Created July 21, 2025 09:43

We’ll be running all the following steps inside a ubuntu:latest docker container. This will help guarantee reproducibility. I’ll be using podman locally, but you can use docker with exactly the same steps. Do not forget to docker pull ubuntu:latest to have the latest version of that container locally.

Get the sources for PyTorch:

git clone --recursive [email protected]:pytorch/pytorch.git

As some riscv64 binaries will be run in the build and test process, you need to install QEMU on your host machine:

@luhenry
luhenry / torch-aten-ops.py
Last active April 3, 2025 07:56
#!/usr/bin/python3
## Dependencies: pip install torch torchvision pandas timm transformers
import pandas as pd
import sys
import torch
import torch.autograd.profiler as profiler
import torch.nn as nn
from enum import StrEnum, auto
@luhenry
luhenry / jcstress.out
Last active August 8, 2023 06:57
This file has been truncated, but you can view the full file.
Java Concurrency Stress Tests
---------------------------------------------------------------------------------
Rev: ce8a2c7747e0232f, built by ludovic with 17.0.4.1 at 2023-08-07T09:53:34Z
Burning up to figure out the exact CPU count....... done!
Probing the target OS:
(all failures are non-fatal, but may affect testing accuracy)
----- [OK] Trying to set global affinity with taskset
@luhenry
luhenry / gist:c31f951abc6b22a91955b8c2a0b43fd4
Created August 7, 2023 14:46
diff --git a/opcodes/riscv-dis.c b/opcodes/riscv-dis.c
index f8d391ee98b..17f8208c15a 100644
--- a/opcodes/riscv-dis.c
+++ b/opcodes/riscv-dis.c
@@ -676,23 +676,9 @@ riscv_disassemble_insn (bfd_vma memaddr,
disassemble_info *info)
{
const struct riscv_opcode *op;
- static bool init = false;
- static const struct riscv_opcode *riscv_hash[OP_MASK_OP + 1];
@luhenry
luhenry / accel.out
Created July 28, 2023 08:11
This file has been truncated, but you can view the full file.
[ RUN ] ParquetTpchTestBase/MultiParquetTpchTest.Q3/0
Plan Operators:
CallbackSink(5)<test_cursor 3:0.0 0x55556300ebf0
Limit(4)<test_cursor 3:0.0 0x555562e65dd0
OrderBy(3)<test_cursor 3:0.0 0x555562d12260
FilterProject(2)<test_cursor 3:0.0 0x555562e641b0
Aggregation(1)<test_cursor 3:0.0 0x7fffc40ffa80
LocalExchange(0)
-- HashJoin[INNER l_orderkey=o_orderkey] -> l_orderkey:INTEGER, o_orderdate:DATE, o_shippriority:INTEGER, part_revenue:DOUBLE
allows duplicates
@luhenry
luhenry / hs_err_pid3297.log
Last active June 21, 2023 11:32
root@a2f9d9ec22ee:/# more hs_err_pid3297.log
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGILL (0x4) at pc=0x0000003fa41e49ba, pid=3297, tid=3298
#
# JRE version: (20.0.1+9) (build )
# Java VM: OpenJDK 64-Bit Server VM (20.0.1-beta+9-202306200336, mixed mode, sharing, tiered, compressed oops, compressed class ptrs, g1 gc, linux-riscv64)
# Problematic frame:
# v ~BufferBlob::native signature handlers 0x0000003fa41e49ba
@luhenry
luhenry / gist:7d877a6e7c2cb2ef2779e6afdd7927e9
Created April 24, 2023 18:09
diff --git a/velox/substrait/SubstraitToVeloxPlan.cpp b/velox/substrait/SubstraitToVeloxPlan.cpp
index 7dd849201..d1560b79b 100644
--- a/velox/substrait/SubstraitToVeloxPlan.cpp
+++ b/velox/substrait/SubstraitToVeloxPlan.cpp
@@ -1739,6 +1739,12 @@ void SubstraitVeloxPlanConverter::setFilterMap(
}
setColInfoMap<int64_t>(functionName, colIdxVal, val, reverse, colInfoMap);
break;
+ case TypeKind::REAL:
+ if (substraitLit) {
@luhenry
luhenry / bbvt-edges.txt
Last active February 22, 2023 16:20
This file has been truncated, but you can view the full file.
(189, 275332522724) -> (189, 275332522724) { 'count': 297744417 }
(189, 274926036140) -> (189, 274926036140) { 'count': 28031708 }
(189, 275346483392) -> (189, 275346483392) { 'count': 18012092 }
(189, 275332522758) -> (189, 275332522568) { 'count': 16804920 }
(189, 275332522568) -> (189, 275332522572) { 'count': 16804525 }
(189, 275335920462) -> (189, 275335920470) { 'count': 16132318 }
(189, 275335920506) -> (189, 275335920514) { 'count': 16132318 }
(189, 275346486754) -> (189, 275346486766) { 'count': 14994389 }
(189, 275346486766) -> (189, 275346486794) { 'count': 14675069 }
(189, 275332522724) -> (189, 275332522742) { 'count': 12726934 }
@luhenry
luhenry / env
Last active October 18, 2022 17:01
export OPENJDK_DIR=/workspace/jdk
export OPENJDK_BUILD=/workspace/jdk/build/linux-riscv64-server-release/images/jdk
export TOP_DIR=$(pwd)
export TEST_DIR=$(pwd)
# export BUILD_LIST=openjdk,system/jcstress
export BUILD_LIST=openjdk
export BUILD_ROOT=$(pwd)/test-results
export JRE_IMAGE=/workspace/jdk/build/linux-riscv64-server-release/images/jdk
export TEST_JDK_HOME=/workspace/jdk/build/linux-riscv64-server-release/images/jdk
export TESTIMAGE_PATH=/workspace/jdk/build/linux-riscv64-server-release/images/test
@luhenry
luhenry / gist:fd6f44f98582755d56f73b08dd10e7dd
Created October 17, 2022 13:37
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index 4d0c178479..f559026e2c 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -74,6 +74,8 @@ static const struct isa_ext_data isa_edata_arr[] = {
ISA_EXT_DATA_ENTRY(h, false, PRIV_VERSION_1_12_0, ext_h),
ISA_EXT_DATA_ENTRY(v, false, PRIV_VERSION_1_12_0, ext_v),
ISA_EXT_DATA_ENTRY(zicsr, true, PRIV_VERSION_1_10_0, ext_icsr),
+ ISA_EXT_DATA_ENTRY(zicbom, true, PRIV_VERSION_1_10_0, ext_icbom),
+ ISA_EXT_DATA_ENTRY(zicboz, true, PRIV_VERSION_1_10_0, ext_icboz),