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Design methods for attaining IBM System z9 processor cycle-time goals.

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Title: Design methods for attaining IBM System z9 processor cycle-time goals.
Authors: Mayer, G.1 guenter_mayer@de.ibm.com, Doettling, G.1 gdoettli@de.ibm.com, Rizzolo, R. F.2 rizzolo@us.ibm.com, Berry, C. J.2 cberry@us.ibm.com, Carey, S. M.2 smcarey@us.ibm.com, Carney, C. M.2 carneycc@us.ibm.com, Keinert, J.1 kehzert@de.ibm.com, Loeffler, P.1 ploeff@de.ibm.com, Nop, W.2 wnop@us.ibm.com, Skooglund, D. E.2 skooghm@us.ibm.com, Victoria, V. A.2 vernv@us.ibm.com, Wagstaff, A. P.2 alanpwag@us.ibm.com, Williams, P. M.3 patricw@us.ibm.com
Source: IBM Journal of Research & Development. Jan/Mar2007, Vol. 51 Issue 1/2, p19-35. 17p.
Subjects: Microprocessors, IBM computer peripherals, Computer input-output equipment, Complementary metal oxide semiconductors, Cooling
Abstract: Cycle-time targets were set for the IBM System z9™ processor subsystem prior to building the system, and achieving these targets was one of the biggest challenges we faced during hardware development. In particular, although the processor-subsystem cycle-time improvement was driven primarily by the technology migration from CMOS 9S (130-nm lithography) for the prior IBM System z990 to CMOS 10SO (90-nm lithography)for the new system, the cooling capability for the System z9 resulted from a direct migration of the System z990 implementation with very limited improvements. The higher device current leakage and power associated with the technology migration, combined with the fixed cooling capability, created a technology challenge in which the subsystem cycle time and performance were potentially limited by cooling capability. Our solution emphasized silicon technology development, chip design, and hardware characterization and tuning. Ultimately, the System z9 processor subsystem achieved operation at 1.7 GHz, which exceeded the original target. [ABSTRACT FROM AUTHOR]
Copyright of IBM Journal of Research & Development is the property of IBM Corporation/IBM Journals and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
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  Data: Design methods for attaining IBM System z9 processor cycle-time goals.
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  Data: <searchLink fieldCode="AR" term="%22Mayer%2C+G%2E%22">Mayer, G.</searchLink><relatesTo>1</relatesTo><i> guenter_mayer@de.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Doettling%2C+G%2E%22">Doettling, G.</searchLink><relatesTo>1</relatesTo><i> gdoettli@de.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Rizzolo%2C+R%2E+F%2E%22">Rizzolo, R. F.</searchLink><relatesTo>2</relatesTo><i> rizzolo@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Berry%2C+C%2E+J%2E%22">Berry, C. J.</searchLink><relatesTo>2</relatesTo><i> cberry@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Carey%2C+S%2E+M%2E%22">Carey, S. M.</searchLink><relatesTo>2</relatesTo><i> smcarey@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Carney%2C+C%2E+M%2E%22">Carney, C. M.</searchLink><relatesTo>2</relatesTo><i> carneycc@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Keinert%2C+J%2E%22">Keinert, J.</searchLink><relatesTo>1</relatesTo><i> kehzert@de.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Loeffler%2C+P%2E%22">Loeffler, P.</searchLink><relatesTo>1</relatesTo><i> ploeff@de.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Nop%2C+W%2E%22">Nop, W.</searchLink><relatesTo>2</relatesTo><i> wnop@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Skooglund%2C+D%2E+E%2E%22">Skooglund, D. E.</searchLink><relatesTo>2</relatesTo><i> skooghm@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Victoria%2C+V%2E+A%2E%22">Victoria, V. A.</searchLink><relatesTo>2</relatesTo><i> vernv@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Wagstaff%2C+A%2E+P%2E%22">Wagstaff, A. P.</searchLink><relatesTo>2</relatesTo><i> alanpwag@us.ibm.com</i><br /><searchLink fieldCode="AR" term="%22Williams%2C+P%2E+M%2E%22">Williams, P. M.</searchLink><relatesTo>3</relatesTo><i> patricw@us.ibm.com</i>
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  Data: <searchLink fieldCode="JN" term="%22IBM+Journal+of+Research+%26+Development%22">IBM Journal of Research & Development</searchLink>. Jan/Mar2007, Vol. 51 Issue 1/2, p19-35. 17p.
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  Data: Cycle-time targets were set for the IBM System z9™ processor subsystem prior to building the system, and achieving these targets was one of the biggest challenges we faced during hardware development. In particular, although the processor-subsystem cycle-time improvement was driven primarily by the technology migration from CMOS 9S (130-nm lithography) for the prior IBM System z990 to CMOS 10SO (90-nm lithography)for the new system, the cooling capability for the System z9 resulted from a direct migration of the System z990 implementation with very limited improvements. The higher device current leakage and power associated with the technology migration, combined with the fixed cooling capability, created a technology challenge in which the subsystem cycle time and performance were potentially limited by cooling capability. Our solution emphasized silicon technology development, chip design, and hardware characterization and tuning. Ultimately, the System z9 processor subsystem achieved operation at 1.7 GHz, which exceeded the original target. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of IBM Journal of Research & Development is the property of IBM Corporation/IBM Journals and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=24672732
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      – SubjectFull: Computer input-output equipment
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