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The Intel Xeon
Phi Coprocessor
Phi Coprocessor
Even Higher Efficiency for Parallel Processing
While a majority of applications will continue to achieve
maximum performance using Intel Xeon processors,
certain highly-parallel applications will benefit dramatically
by using Intel Xeon Phi coprocessors. Each coprocessor
features many more and smaller cores, many more threads,
and wider vector units. The high degree of parallelism
compensates for the lower speed of each individual core
to deliver higher aggregate performance for highly-
parallel code.
maximum performance using Intel Xeon processors,
certain highly-parallel applications will benefit dramatically
by using Intel Xeon Phi coprocessors. Each coprocessor
features many more and smaller cores, many more threads,
and wider vector units. The high degree of parallelism
compensates for the lower speed of each individual core
to deliver higher aggregate performance for highly-
parallel code.
You can use Intel Xeon processors and Intel Xeon Phi
coprocessors together to optimize performance for almost
any workload. To take full advantage of Intel Xeon Phi
coprocessors, an application must scale well to over one-
hundred threads, and either make extensive use of vectors
or efficiently use more local memory bandwidth than is
available on an Intel Xeon processor. Learn more at
coprocessors together to optimize performance for almost
any workload. To take full advantage of Intel Xeon Phi
coprocessors, an application must scale well to over one-
hundred threads, and either make extensive use of vectors
or efficiently use more local memory bandwidth than is
available on an Intel Xeon processor. Learn more at
http://software.intel.com/en-us/articles/is-intelr-xeon-
phitm-coprocessor-right-for-you
phitm-coprocessor-right-for-you
.
A Single Programming Model for All Your Code
A broad ecosystem of programming languages, models,
and tools support Intel® architecture and all of them can
be used with both Intel Xeon processors and Intel Xeon Phi
coprocessors. Applications that run on one processor family
will run on the other. This uniformity can greatly reduce the
complexity of software development. Existing applications
will need to be tuned and recompiled to maximize
throughput, but your developers won’t need to rethink
the entire problem or master new tools and programming
models. Instead, they can reuse existing code and maintain
a common code base using familiar tools and methods.
and tools support Intel® architecture and all of them can
be used with both Intel Xeon processors and Intel Xeon Phi
coprocessors. Applications that run on one processor family
will run on the other. This uniformity can greatly reduce the
complexity of software development. Existing applications
will need to be tuned and recompiled to maximize
throughput, but your developers won’t need to rethink
the entire problem or master new tools and programming
models. Instead, they can reuse existing code and maintain
a common code base using familiar tools and methods.
Code can be optimized just once for both Intel Xeon
processors and Intel Xeon Phi coprocessors. The same
techniques deliver optimal performance for both, so the
investment you make in parallelizing your code will deliver
benefits across the full range of computing environments.
processors and Intel Xeon Phi coprocessors. The same
techniques deliver optimal performance for both, so the
investment you make in parallelizing your code will deliver
benefits across the full range of computing environments.
A Family of Coprocessors for Diverse Needs
Intel Xeon Phi coprocessors provide up to 61 cores, 244
threads, and 1.2 teraflops of performance, and they
come in a variety of configurations to address diverse
hardware, software, workload, performance, and efficiency
requirements.
threads, and 1.2 teraflops of performance, and they
come in a variety of configurations to address diverse
hardware, software, workload, performance, and efficiency
requirements.
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They also come in a variety of form factors,
including a standard PCIe* x16 form factor (with active,
passive, or no thermal solution), and a dense form factor
that offers additional design flexibility (Table 2).
• The Intel® Xeon Phi™ Coprocessor 3100 family provides
passive, or no thermal solution), and a dense form factor
that offers additional design flexibility (Table 2).
• The Intel® Xeon Phi™ Coprocessor 3100 family provides
outstanding parallel performance. It is an excellent choice
for compute-bound workloads, such as MonteCarlo,
black-Scholes, HPL, LifeSc, and many others. Active and
passive cooling options provide flexible support for a
variety of server and workstation systems.
for compute-bound workloads, such as MonteCarlo,
black-Scholes, HPL, LifeSc, and many others. Active and
passive cooling options provide flexible support for a
variety of server and workstation systems.
• The Intel® Xeon Phi™ Coprocessor 5100 family is
optimized for high-density computing and is well-suited
for workloads that are memory-bandwidth bound, such
as STREAM, memory-capacity bound, such as ray-tracing,
or both, such as reverse time migration (RTM). These
coprocessors are passively cooled and have the lowest
thermal design power (TDP) of the Intel Xeon Phi
product family.
for workloads that are memory-bandwidth bound, such
as STREAM, memory-capacity bound, such as ray-tracing,
or both, such as reverse time migration (RTM). These
coprocessors are passively cooled and have the lowest
thermal design power (TDP) of the Intel Xeon Phi
product family.
• The Intel® Xeon Phi™ Coprocessor 7100 family provides
the most features and the highest performance and
memory capacity of the Intel Xeon Phi product family.
This family supports Intel® Turbo boost Technology 1.0,
which increases core frequencies during peak workloads
when thermal conditions allow. Passive and no thermal
solution options enable powerful and innovative
computing solutions.
memory capacity of the Intel Xeon Phi product family.
This family supports Intel® Turbo boost Technology 1.0,
which increases core frequencies during peak workloads
when thermal conditions allow. Passive and no thermal
solution options enable powerful and innovative
computing solutions.
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