发明名称 |
MANAGING CURRENT AND POWER IN A COMPUTING SYSTEM |
摘要 |
A system and method for efficient power transfer on a die. A semiconductor chip comprises on a die two or more computation units (CUs) utilizing at least two different voltage regulators and a power manager. The power manager reallocates power credits across the die when it detects an activity level of a given CU is below a given threshold. In response to receiving a corresponding number of donated power credits, each of the one or more selected CUs maintains a high activity level with a high performance P-state. When a corresponding workload increases, each CU maintains operation and an average power consumption corresponding to the high performance P-state by alternating between at least two different operational voltages. When the operational voltage drops during the alternation, the current drawn by the particular CU may exceed a given current limit. The power manager detects this current limit is exceeded and accordingly reallocates the power credits across the die. |
申请公布号 |
EP2596413(A1) |
申请公布日期 |
2013.05.29 |
申请号 |
EP20110735581 |
申请日期 |
2011.07.14 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
NAFFZIGER, SAMUEL, D.;NUSSBAUM, SEBASTIEN, J. |
分类号 |
G06F1/26 |
主分类号 |
G06F1/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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