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ComfyUI > Nodes > ComfyUI-MAINodes > H3 Memory Probe (ledger + allocator trace, alpha)

ComfyUI Node: H3 Memory Probe (ledger + allocator trace, alpha)

Class Name

H3MemoryProbe

Category
MAINodes/VRAM Lab
Author
matlowai (Account age: 1004days)
Extension
ComfyUI-MAINodes
Latest Updated
2026-08-26
Github Stars
0.11K

How to Install ComfyUI-MAINodes

Install this extension via the ComfyUI Manager by searching for ComfyUI-MAINodes
  • 1. Click the Manager button in the main menu
  • 2. Select Custom Nodes Manager button
  • 3. Enter ComfyUI-MAINodes in the search bar
After installation, click the Restart button to restart ComfyUI. Then, manually refresh your browser to clear the cache and access the updated list of nodes.

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H3 Memory Probe (ledger + allocator trace, alpha) Description

Monitor and analyze memory usage in H3 diffusion model, providing detailed ledger of PyTorch allocator counters per block and phase.

H3 Memory Probe (ledger + allocator trace, alpha):

H3MemoryProbe is a specialized node designed to monitor and analyze memory usage within the H3 diffusion model. It serves as a memory instrument that provides a detailed ledger of PyTorch's allocator counters on a per-block and per-phase basis. This node is particularly beneficial for users who need to understand and optimize memory allocation during model execution. By offering an optional allocator trace, which can be rendered into a hoverable HTML timeline, H3MemoryProbe allows you to visualize memory usage patterns over time. This feature is especially useful for identifying memory bottlenecks and optimizing resource allocation. The node operates without any overhead when turned off, ensuring that it does not impact performance when not in use. Overall, H3MemoryProbe is an essential tool for AI artists and developers looking to gain insights into memory management and improve the efficiency of their models.

H3 Memory Probe (ledger + allocator trace, alpha) Input Parameters:

The context does not provide specific input parameters for H3MemoryProbe. Therefore, I cannot enumerate or describe them accurately. If you have access to the node's interface or documentation, please refer to those resources for detailed information on input parameters.

H3 Memory Probe (ledger + allocator trace, alpha) Output Parameters:

The context does not provide specific output parameters for H3MemoryProbe. Therefore, I cannot enumerate or describe them accurately. If you have access to the node's interface or documentation, please refer to those resources for detailed information on output parameters.

H3 Memory Probe (ledger + allocator trace, alpha) Usage Tips:

  • To effectively utilize H3MemoryProbe, ensure that you enable the allocator trace when you need detailed insights into memory usage patterns. This can help you identify and address memory bottlenecks in your model.
  • Consider using H3MemoryProbe in conjunction with other nodes like H3StreamedBlocks to gain a comprehensive understanding of memory allocation and usage throughout the model's execution.

H3 Memory Probe (ledger + allocator trace, alpha) Common Errors and Solutions:

Allocator trace unavailable

  • Explanation: This error occurs when the allocator trace feature is not available due to the default setting of cudaMallocAsync in ComfyUI, which conflicts with PyTorch's native caching allocator.
  • Solution: Start ComfyUI with the --disable-cuda-malloc option to enable the allocator trace feature. This will allow you to record and analyze memory usage effectively while still benefiting from the ledger functionality.

H3 Memory Probe (ledger + allocator trace, alpha) Related Nodes

Go back to the extension to check out more related nodes.
ComfyUI-MAINodes
RunComfy
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RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.

H3 Memory Probe (ledger + allocator trace, alpha)