File size: 8,578 Bytes
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$huggingFaceRepoURL = "https://huggingface.co/bradhutchings/Brads-LLMs"
$llamafile = "Brads-LLMs-llamafile.exe"
$modelFile = 'Telugu-Indic-gemma-7b-finetuned-sft-Navarasa-2.0-q8_0.gguf'
$contextSize = 8192
$maxContextSize = 8192
$threads = 4
$parallel = 2
$ngl = 9999
$gpu = 'disable' # disable, auto, amd, apple, nvidia
################################################################################
# Script location.
################################################################################
$myPath = $MyInvocation.MyCommand.Path
$myParent = Split-Path $mypath -Parent
$myGrandParent = Split-Path $myParent -Parent
<#
"`$myPath: $myPath"
"`$myParent: $myParent"
"`$myGrandParent: $myGrandParent"
#>
################################################################################
# Overrides file.
################################################################################
$overridesJsonFilename = 'overrides.json'
$overridesJsonFile = "$myParent\$overridesJsonFilename"
if (Test-Path -Path $overridesJsonFile -PathType Leaf) {
try {
$contextSizeSave = $contextSize
$threadsSave = $threads
$parallelSave = $parallel
$nglSave = $ngl
$gpuSave = $gpu
$overridesJsonFileData = Get-Content -Path $overridesJsonFile -Raw
$jsonData = ConvertFrom-Json -InputObject $overridesJsonFileData
if ($jsonData | Get-Member 'contextSize'){
$contextSize = [Math]::Min($jsonData.contextSize, $maxContextSize)
}
if ($jsonData | Get-Member 'threads'){
$threads = $jsonData.threads
}
if ($jsonData | Get-Member 'parallel'){
$parallel = $jsonData.parallel
}
if ($jsonData | Get-Member 'ngl'){
$ngl = $jsonData.ngl
}
if ($jsonData | Get-Member 'gpu'){
$gpu = $jsonData.gpu
}
}
catch {
$contextSize = $contextSizeSave
$threads = $threadsSave
$parallel = $parallelSave
$ngl = $nglSave
$gpu = $gpuSave
}
<#
"overrides.json:"
"- `$contextSize: $contextSize"
"- `$threads: $threads"
"- `$parallel: $parallel"
"- `$ngl: $ngl"
"- `$gpu: $gpu"
#>
}
################################################################################
# Models folder.
################################################################################
$dev = ".dev"
$models = "models"
$myDev = "$myParent\$dev"
$myModels = "$myParent\$models"
$devModels = "$myGrandParent\$models"
$useModels = $myModels
<#
echo "`$myDev: $myDev"
echo "`$myModels: $myModels"
echo "`$devModels: $devModels"
echo "`$useModels: $useModels"
"`$myDev exists: " + (Test-Path -Path $myDev -PathType Leaf)
"`$devModels exists: " + (Test-Path -Path $devModels -PathType Container)
#>
if ((Test-Path -Path $myDev -PathType Leaf) -and (Test-Path -Path $devModels -PathType Container)) {
$useModels = $devModels
}
else {
if (!(Test-Path -Path $myModels -PathType Container)) {
mkdir $myModels
}
$useModels = $myModels
}
<#
echo "Models: $useModels"
echo "--------------------"
#>
################################################################################
# Download llamafile.exe if not present.
################################################################################
$myLlamafile = "$myParent\$llamafile"
$myLlamafileTemp = "$myParent\$llamafile-temp"
$myLlamafileDownloadURL = "$huggingFaceRepoURL/resolve/main/$($llamafile)?download=true"
<#
"`$llamafile: $llamafile"
"`$myLlamafile: $myLlamafile"
"`$myLlamafileTemp: $myLlamafileTemp"
"`$myLlamafileDownloadURL: $myLlamafileDownloadURL"
#>
if (!(Test-Path -Path $myLlamafile -PathType Leaf)) {
# Download from Hugging Face
"Downloading $llamafile from Hugging Face."
# ""
$progresspreference = 'SilentlyContinue'
$result = Invoke-WebRequest -Method HEAD -Uri $myLlamafileDownloadURL -UseBasicParsing
$progresspreference = 'Continue'
$downloadSizeRaw = $result.Headers."Content-Length"
$downloadSize = [int]($downloadSizeRaw / (1024 * 1024))
$downloadSize = $downloadSize.ToString("N0") + " MB"
"- Preparing to download $downloadSize."
# ""
Start-Sleep -Seconds 2
$sb = {
$progresspreference = 'SilentlyContinue'
Invoke-WebRequest -Uri $using:myLlamafileDownloadURL -Outfile $using:myLlamafileTemp | Out-Null
}
Start-Job -Name 'Download' -ScriptBlock $sb | Out-Null
while ((Get-Job -Name 'Download').State -eq 'Running') {
if (Test-Path -Path $myLlamafileTemp) {
$downloadedBytesRaw = $((Get-ChildItem $myLlamafileTemp).Length)
$downloadedBytes = [int]($downloadedBytesRaw / (1024 * 1024))
$downloadedBytes = $downloadedBytes.ToString("N0") + " MB"
$downloadPercent = [int](100 * ($downloadedBytesRaw / $downloadSizeRaw))
Write-Progress -Activity "Downloading $llamafile" -Status ("Progress: " + $downloadPercent + "%") -CurrentOperation "$downloadedBytes / $downloadSize" -PercentComplete $downloadPercent
}
else {
Write-Progress -Activity "Downloading $llamafile" -Status "Progress:" -CurrentOperation "Starting..."
}
Start-Sleep -Milliseconds 200
}
Write-Progress -Activity "Downloaded Bytes" -Completed
Move-Item -Path $myLlamafileTemp -Destination $myLlamafile -Force
"- Finished downloading $llamafile from Hugging Face."
""
Start-Sleep -Seconds 2
}
################################################################################
# Download model file if not present.
################################################################################
$myModel = "$useModels\$modelFile"
$myModelTemp = "$useModels\$modelFile-temp"
$myModelDownloadURL = "$huggingFaceRepoURL/resolve/main/models/$($modelFile)?download=true"
<#
"`$myModel: $myModel"
"`$myModelTemp: $myModelTemp"
"`$myModelDownloadURL: $myModelDownloadURL"
#>
if (!(Test-Path -Path $myModel -PathType Leaf)) {
# Download from Hugging Face
"Downloading $modelFile from Hugging Face."
# ""
$progresspreference = 'SilentlyContinue'
$result = Invoke-WebRequest -Method HEAD -Uri $myModelDownloadURL -UseBasicParsing
$progresspreference = 'Continue'
$downloadSizeRaw = $result.Headers."Content-Length"
$downloadSize = [int]($downloadSizeRaw / (1024 * 1024))
$downloadSize = $downloadSize.ToString("N0") + " MB"
"- Preparing to download $downloadSize."
# ""
Start-Sleep -Seconds 2
$sb = {
$progresspreference = 'SilentlyContinue'
Invoke-WebRequest -Uri $using:myModelDownloadURL -Outfile $using:myModelTemp | Out-Null
}
Start-Job -Name 'Download' -ScriptBlock $sb | Out-Null
while ((Get-Job -Name 'Download').State -eq 'Running') {
if (Test-Path -Path $myModelTemp) {
$downloadedBytesRaw = $((Get-ChildItem $myModelTemp).Length)
$downloadedBytes = [int]($downloadedBytesRaw / (1024 * 1024))
$downloadedBytes = $downloadedBytes.ToString("N0") + " MB"
$downloadPercent = [int](100 * ($downloadedBytesRaw / $downloadSizeRaw))
Write-Progress -Activity "Downloading $modelFile" -Status ("Progress: " + $downloadPercent + "%") -CurrentOperation "$downloadedBytes / $downloadSize" -PercentComplete $downloadPercent
}
else {
Write-Progress -Activity "Downloading $modelFile" -Status "Progress:" -CurrentOperation "Starting..."
}
Start-Sleep -Seconds 4
}
Write-Progress -Activity "Downloaded Bytes" -Completed
Move-Item -Path $myModelTemp -Destination $myModel -Force
"- Finished downloading $modelFile from Hugging Face."
""
Start-Sleep -Seconds 2
}
################################################################################
# if llamafile and model are present, launch llamafile
################################################################################
if ((Test-Path -Path "$myLlamafile" -PathType Leaf) -and (Test-Path -Path "$myModel" -PathType Leaf)) {
$process = Start-Process "$myLlamafile" -ArgumentList "-m `"$myModel`" --ctx-size $contextSize --threads $threads --parallel $parallel --server -ngl $ngl --gpu $gpu" -PassThru -NoNewWindow
$process.PriorityClass = [System.Diagnostics.ProcessPriorityClass]::High
}
else {
"There was an unkown problem downloading or saving the model."
Start-Sleep -s 20
}
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