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Update Notebook Example to correctly extract visible devices #1831

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merged 2 commits into from
Jun 5, 2023
Merged

Update Notebook Example to correctly extract visible devices #1831

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7b27043
Get visible devices from env var if set
oliverholworthy Jun 5, 2023
89ada29
Merge branch 'main' into test-example-notebook-visible-devices
oliverholworthy Jun 5, 2023
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23 changes: 22 additions & 1 deletion examples/03-Running-on-multiple-GPUs-or-on-CPU.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,7 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"id": "77464844",
"metadata": {},
Expand All @@ -53,6 +54,7 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"id": "1c5598ae",
"metadata": {},
Expand Down Expand Up @@ -92,6 +94,7 @@
]
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"id": "63ac0cf2",
"metadata": {},
Expand All @@ -100,6 +103,7 @@
]
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"id": "4def0005",
"metadata": {},
Expand All @@ -123,6 +127,7 @@
]
},
{
"attachments": {},
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"id": "d7c3f9ea",
"metadata": {},
Expand All @@ -148,6 +153,7 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"id": "728c3009",
"metadata": {},
Expand Down Expand Up @@ -176,11 +182,15 @@
"\n",
"# Deploy a Single-Machine Multi-GPU Cluster\n",
"protocol = \"tcp\" # \"tcp\" or \"ucx\"\n",
"\n",
"if numba.cuda.is_available():\n",
" NUM_GPUS = list(range(len(numba.cuda.gpus)))\n",
"else:\n",
" NUM_GPUS = []\n",
"visible_devices = \",\".join([str(n) for n in NUM_GPUS]) # Delect devices to place workers\n",
"try:\n",
" visible_devices = os.environ[\"CUDA_VISIBLE_DEVICES\"]\n",
"except KeyError:\n",
" visible_devices = \",\".join([str(n) for n in NUM_GPUS]) # Delect devices to place workers\n",
"device_limit_frac = 0.7 # Spill GPU-Worker memory to host at this limit.\n",
"device_pool_frac = 0.8\n",
"part_mem_frac = 0.15\n",
Expand All @@ -206,6 +216,7 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"id": "d14dc098",
"metadata": {},
Expand Down Expand Up @@ -242,6 +253,7 @@
]
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"metadata": {},
Expand Down Expand Up @@ -589,6 +601,7 @@
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"metadata": {},
Expand All @@ -599,6 +612,7 @@
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"metadata": {},
Expand All @@ -622,6 +636,7 @@
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"metadata": {},
Expand Down Expand Up @@ -678,6 +693,7 @@
]
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"metadata": {},
Expand All @@ -686,6 +702,7 @@
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"metadata": {},
Expand Down Expand Up @@ -714,6 +731,7 @@
]
},
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"metadata": {},
Expand Down Expand Up @@ -745,6 +763,7 @@
]
},
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"id": "d28ae761",
"metadata": {},
Expand All @@ -755,6 +774,7 @@
]
},
{
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"id": "4e07864d",
"metadata": {},
Expand All @@ -763,6 +783,7 @@
]
},
{
"attachments": {},
"cell_type": "markdown",
"id": "8f971a22",
"metadata": {},
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