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windows-miner: CUDA build finds the MSVC and SDK libraries itself, uploader reads logs in use, deeper toolset search

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Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
This commit is contained in:
igneum-labs 2026-10-03 19:38:22 +00:00
parent c3b7ddda8a
commit f87a457b77
3 changed files with 25 additions and 2 deletions
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23
proto-cuda/build.bat
View file

@ -34,6 +34,20 @@ if not exist "packs\%PACK%\kernel.cu" (
rem Packs written by igneum-pow or igneum-miner export-pack carry kernel_bound.cu (the header-bound kernel for --serve).
set BOUND=
if exist "packs\%PACK%\kernel_bound.cu" set BOUND=-DIGNEUM_BOUND "packs\%PACK%\kernel_bound.cu"
rem Find the MSVC runtime libraries and the Windows SDK libraries ourselves and put them in front of LIB: a vcvarsall
rem import can leave LIB without the MSVC lib directory (seen with the 14.30 toolset on Visual Studio 2026), and then
rem nvcc's link step fails with LNK1104 LIBCMT.lib. The newest toolset's libraries link fine with 14.30 objects.
set "MSVCLIB="
set "SDKLIB="
set "VSVC=%VCINSTALLDIR%"
if "%VSVC%"=="" set "VSVC=C:\Program Files\Microsoft Visual Studio\18\Community\VC\"
set "KITS=C:\Program Files (x86)\Windows Kits\10\Lib"
for /f "delims=" %%D in ('dir /b /ad /o-n "%VSVC%Tools\MSVC" 2^>nul') do call :msvc "%%D"
for /f "delims=" %%D in ('dir /b /ad /o-n "%KITS%" 2^>nul') do call :sdk "%%D"
if not "%SDKLIB%"=="" set "LIB=%SDKLIB%\ucrt\x64;%SDKLIB%\um\x64;%LIB%"
if not "%MSVCLIB%"=="" set "LIB=%MSVCLIB%;%LIB%"
if "%MSVCLIB%"=="" echo warning: no libcmt.lib under any MSVC toolset; the link step may fail.
echo link libraries: MSVC="%MSVCLIB%" SDK="%SDKLIB%"
nvcc --version
echo nvcc -O3 -std=c++17 -arch=%ARCH% -allow-unsupported-compiler -I "packs\%PACK%" -o "igneum-bench-cuda-%PACK%.exe" host.cu "packs\%PACK%\kernel.cu" %BOUND%
nvcc -O3 -std=c++17 -arch=%ARCH% -allow-unsupported-compiler -I "packs\%PACK%" -o "igneum-bench-cuda-%PACK%.exe" host.cu "packs\%PACK%\kernel.cu" %BOUND%
@ -44,3 +58,12 @@ if errorlevel 1 (
echo built igneum-bench-cuda-%PACK%.exe
if not "%BOUND%"=="" echo with --serve support (kernel_bound.cu)
endlocal
exit /b 0
:msvc
if not "%MSVCLIB%"=="" goto :eof
if exist "%VSVC%Tools\MSVC\%~1\lib\x64\libcmt.lib" set "MSVCLIB=%VSVC%Tools\MSVC\%~1\lib\x64"
goto :eof
:sdk
if not "%SDKLIB%"=="" goto :eof
if exist "%KITS%\%~1\ucrt\x64\libucrt.lib" set "SDKLIB=%KITS%\%~1"
goto :eof

2
proto-cuda/windows-miner/start-mining.ps1
View file

@ -90,7 +90,7 @@ function Import-VcVars {
# Fallback when vcvarsall is unusable: LIB and INCLUDE from the newest MSVC toolset and Windows Kits, as proto-opencl/build.bat does.
function Set-LibFallback {
$vsRoots = @()
foreach ($pf in @('C:\Program Files', 'C:\Program Files (x86)')) { $vsRoots += Get-ChildItem -Path (Join-Path $pf 'Microsoft Visual Studio') -Directory -Recurse -Depth 3 -Filter 'MSVC' -ErrorAction SilentlyContinue }
foreach ($pf in @('C:\Program Files', 'C:\Program Files (x86)')) { $vsRoots += Get-ChildItem -Path (Join-Path $pf 'Microsoft Visual Studio') -Directory -Recurse -Depth 6 -Filter 'MSVC' -ErrorAction SilentlyContinue }
$msvc = $null
foreach ($r in $vsRoots) {
# Prefer the toolset CUDA accepts (vcvarsVer, 14.30), then the newest one that has the libraries.

2
proto-cuda/windows-miner/upload-log.bat
View file

@ -20,7 +20,7 @@ set "RUNID=%~3"
if "%RUNID%"=="" set "RUNID=%IGNEUM_RUN_ID%"
set "OUT=%TEMP%\igneum-upload-%RANDOM%.json"
powershell -NoProfile -ExecutionPolicy Bypass -Command "$ErrorActionPreference='Stop'; $b=[IO.File]::ReadAllBytes($env:LOGFILE); $n=[Math]::Min($b.Length,262144); $t=[Text.Encoding]::UTF8.GetString($b,$b.Length-$n,$n); $r=$env:RUNID; if (-not $r) { $r=$env:LABEL + '-' + (Get-Date -Format 'yyyyMMdd-HHmm') }; $o=@{label=$env:LABEL;machine=$env:COMPUTERNAME;run_id=$r;lines=$t}; [IO.File]::WriteAllText($env:OUT,(ConvertTo-Json $o -Compress),(New-Object Text.UTF8Encoding $false)); Write-Host ('upload-log: run_id ' + $r + ', ' + $n + ' bytes')"
powershell -NoProfile -ExecutionPolicy Bypass -Command "$ErrorActionPreference='Stop'; $fs=New-Object IO.FileStream($env:LOGFILE,[IO.FileMode]::Open,[IO.FileAccess]::Read,[IO.FileShare]::ReadWrite); $b=New-Object byte[] $fs.Length; [void]$fs.Read($b,0,$b.Length); $fs.Close(); $n=[Math]::Min($b.Length,262144); $t=[Text.Encoding]::UTF8.GetString($b,$b.Length-$n,$n); $r=$env:RUNID; if (-not $r) { $r=$env:LABEL + '-' + (Get-Date -Format 'yyyyMMdd-HHmm') }; $o=@{label=$env:LABEL;machine=$env:COMPUTERNAME;run_id=$r;lines=$t}; [IO.File]::WriteAllText($env:OUT,(ConvertTo-Json $o -Compress),(New-Object Text.UTF8Encoding $false)); Write-Host ('upload-log: run_id ' + $r + ', ' + $n + ' bytes')"
if errorlevel 1 (
echo upload-log: could not read or encode %LOGFILE%
exit /b 3