blob: bc5c916495ea61fed431aa3ddd0c6dbe85821043 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
/**
* Helper to exhaust VRAM until there is less than 64 MB of capacity. Returns
* an opaque closure which can be called to free the allocated resources later.
*/
export async function exhaustVramUntilUnder64MB(device: GPUDevice) {
const allocateUntilOom = async (device: GPUDevice, size: number) => {
const buffers = [];
for (;;) {
device.pushErrorScope('out-of-memory');
const buffer = device.createBuffer({ size, usage: GPUBufferUsage.STORAGE });
if (await device.popErrorScope()) {
return buffers;
}
buffers.push(buffer);
}
};
const kLargeChunkSize = 512 * 1024 * 1024;
const kSmallChunkSize = 64 * 1024 * 1024;
const buffers = await allocateUntilOom(device, kLargeChunkSize);
buffers.push(...(await allocateUntilOom(device, kSmallChunkSize)));
return () => {
buffers.forEach(buffer => buffer.destroy());
};
}
|
