27 lines
1.0 KiB
Markdown
27 lines
1.0 KiB
Markdown
# Emulation overview
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The emulator reads the events stored during runtime and reconstructs the
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execution, restoring the state of each thread and CPU as time evolves. During
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the emulation process, a detailed trace is generated with the state of the
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execution in the Paraver PRV format.
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The emulator has an execution model to represent the real execution that
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happened on the hardware. It consists of CPUs which can execute multiple threads
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at the same time.
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The emulator uses several models to identify how the resources are being
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used. The following diagram despicts the resource, process and task
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model.
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The resource model directly maps to the available hardware on the
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machine. It consists of clusters which contains nodes, where each node
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contains a set of CPUs that can execute instructions.
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The process model tracks the state of processes and threads. Processes
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that use the same CPUs in a single node are grouped into looms.
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The task model includes the information of MPI and tasks of the
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programming model (OmpSs-2).
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