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Technology Stocks : Intel Corporation (INTC)
INTC 36.78+2.7%Nov 26 3:59 PM EST
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To: Paul Engel who wrote (112809)10/9/2000 3:33:47 AM
From: Joseph Pareti  Read Replies (1) of 186894
 
>Just what in the IA64 architecture causes pointer manipulation to be an impediment

what i heard is this :

IA-64 may be very good at regular patterns such as matrix operations for which the compiler can make best use of the underlying architecture ( the LINPACK benchmark might reflect this). In OLTP however (and I admit, this is a foreign territory for me) the workload is quite different and hence hard to be properly accounted for AT COMPILE TIME. Out-of-order processors (such as Pentium, PA-RISC, 21264 and higher) can mask latency penalties
from memory accesses by issuing load instructions in advance (instructions ordering rearranged on the fly, this cannot be accomplished by ILP).

Again, any input from you (and from the thread) would be welcome.
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