Showing posts with label ARM SVE anouncment. Show all posts

It looks like Intel (NSDQ:INTC) has finally realized the potential of ARM (NSDQ:ARMH) business prospects. The chipzilla entered into a licensing agreement with ARM last week, which allows it to manufacture ARM-based mobile SoCs for fabless chipmakers such as Qualcomm, Apple and Nvidia. The move would combine Intel’s industry-leading chip fabrication processes with ARM’s highly efficient mobile designs, and the joint synergies could potentially shake up the entire semiconductor industry. Let’s take a closer look to have a better understanding of it all.

ARM Technology

  • Intel recently struck a licensing agreement with ARM to manufacture its chips.
  • The Move could boost Intel's revenues significantly. 
  • It could also bring upon a cash crunch on Intel's competitors, that could ultimately slow down their rate of progression.

Welcoming ARM, with arms wide open

ARM Partnership


Let me start by saying that Intel has had the world’s most advanced chip fabrication technologies for several years now. It’s manufacturing lead was as long as 18 months, back in 2014 and the chipzilla is expected to still stay ahead of its peers (Taiwan Semiconductor, GlobalFoundries and Samsung) at least up till 2018. Intel’s competitors were thriving till date due to increasing business from ARM, but now that Intel has entered the scene with similar intentions, the bulk of this business would pretty much go to the chipzilla due to its manufacturing lead. After all, in the cut throat semiconductor industry, everyone would want their performance chips to be manufactured on the latest nodes.

2015 Rank
2014 Rank
Vendor
2015 Revenue
2015 Market Share (%)
2014 Revenue
2015-2014 Growth (%)
1
1
TSMC1
26,566
54.3
25,175
5.5
2
3
Globalfoundries2
4,673
9.6
4,400
6.2
3
2
UMC3
4,561
9.3
4,621
-1.3
4
4
Samsung Electronics4
2,607
5.3
2,412
8.1
5
5
SMIC
2,229
4.6
1,970
13.1
6
6
Powerchip Technology5
985
2
917
7.4
7
7
TowerJazz
961
2
828
16.1
8
10
Fujitsu Semiconductor
845
1.7
653
29.4
9
8
Vanguard International
736
1.5
790
-6.9
10
9
Shanghai Huahong Grace Semiconductor
651
1.3
665
-2
Top 10 for 2015
44,814
91.7
42,431
5.6
Others
4,077
8.3
4,281
-7
Total Market
48,891
100
46,812
4.4
 

·         - The global semiconductor foundry business is estimated to be around $48.8 billion in size. If Intel manages to slice up even 10% of this market, which shouldn’t be that hard since it currently has the world’s most-advanced chip fabrication technologies, its incremental revenues could be to the tune of $4.8 billion. That’s a significant bump in its top-line, representing an increase of about 8.7% over its FY15 revenue. So its needless to say that Intel would be opening a big revenue stream with this move. Intel can later use this additional cash flow to fund its race to global 5G domination.
·        -  More to the point, the semiconductor industry requires billions of spending each year, earmarked towards improving manufacturing technologies. If Intel manages to take away a sizable market share from Taiwan Semiconductor and GlobalFoundries, then the their constrained cash flows could hamper their R&D and capex spending, and ultimately result in their growth slowdown. So the move to manufacture ARM chips not only serves as an incremental revenue driver for Intel, but also limits the growth of its foundry competitors. Talk about taking down two targets with one blow.
·         - Also, once Intel starts manufacturing ARM-based chips, its factory utilization rate and production volumes would increase. This should allow the chipmaker to attain better economies of scale, improve its manufacturing efficiency and at the end of the day, it would become easier for Intel to keep its fabs busy with the onset of this deal. Its foundry operations for ARM-based chipmakers would act as a hedge against the slowing down PC  sales. These benefits should translate into better gross margins.
·         - And lastly, the move allows Intel to capitalize on the mobile opportunity, while it still can. The chipzilla won’t have to design its own Atom chips for mobile devices anymore in order to tap the smartphone/tablet segment. So Intel would now be able to cater to the mobile market, without having to invest billions in contra revenue or mobile-related R&D spending. I believe that this is a low-risk, high-reward opportunity for Intel and its shareholders.

Tempering excitement

Just like any other business move, this one brings its own set of challenges and limitations as well.
·        -  First of all, Intel won’t be a chipmaker like Qualcomm, Apple or Nvidia. It will just be a foundry catering to other fabless firms. This pretty much means that Intel’s revenue would be limited to its production volume, regardless of how profitable or popular those chips become. So its revenue stream could end up being as volatile and seasonal as Micron’s.
·         - Secondly, if Intel continues in this direction, it might also end up opening its foundry business to ARM-based server chipmakers such as Cavium, AMD and Qualcomm. This may prove to be a death knell for Intel’s highly profitable x86 server business. It could fuel the growth of ARM servers and there’s a solid chance that they’d end up cannibalizing Intel’s Xeon sales. So Intel must not head in this direction.
·         - More to the point, Intel’s excess fabs aren’t running 10nm processes. Manufacturing 10nm chips on large scale volume by 2018 would require a lot of retooling on Intel’s part. This would most certainly bump up chipzilla’s capital expenditures over the next few years, without providing any sort of guarantee that fabless chipmakers would pick Intel for their manufacturing needs.

Putting it all together

Intel finally realized that other foundries are its competitors as well. If the chipzilla succeeds in taking business away from them, it would bring upon a cash crunch and ultimately slow down the rate of progress of competition. So the move not only stands to boost Intel’s revenues, but can also potentially impede the growth of its competition. I see this as an excellent business move forward for Intel and its shareholders.
   
ARM and Fujitsu today announced a scalable vector extension (SVE) to the ARMv8-A architecture intended to enhance ARM capabilities in HPC workloads. Fujitsu is the lead silicon partner in the effort (so far) and will use ARM with SVE technology in its post K computer, Japan’s next flagship supercomputer planned for the 2020 timeframe. This is an important incremental step for ARM, which seeks to push more aggressively into mainstream and HPC server markets.
ARM with SVE technology

Fujitsu first announced plans to adopt ARM for the post K machine – a switch from SPARC processor technology used in the K computer – at ISC2016 and said at the time that it would reveal more at Hot Chips about the ARM development effort needed. Bull Atos is also developing an ARM-based supercomputer.

The SVE is focused on addressing “next generation high performance computing challenges and by that we mean workloads typically found in scientific computing environment where they are very parallelizable,” said Ian Smythe, director of marketing programs, ARM Compute Products Group, in a pre-briefing. SVE is scalable from 128-bits to 2048-bits in 128-bit increments and, among other things, should enhance ARM’s ability to exploit fine grain parallelism.
ARM’s ability benefits and HPC server markets
Nigel Stephens, lead ISA architect and ARM Fellow, provided more technical detail in his blog (Technology Update: The Scalable Vector Extension (SVE) for the ARMv8-A Architecture, link below) coinciding with his Hot Chips presentation. It’s worth reading for a fast but substantial summary.

“Rather than specifying a specific vector length, SVE allows CPU designers to choose the most appropriate vector length for their application and market, from 128 bits up to 2048 bits per vector register,” wrote Stephens. “SVE also supports a vector-length agnostic (VLA) programming model that can adapt to the available vector length. Adoption of the VLA paradigm allows you to compile or hand-code your program for SVE once, and then run it at different implementation performance points, while avoiding the need to recompile or rewrite it when longer vectors appear in the future. This reduces deployment costs over the lifetime of the architecture; a program just works and executes wider and faster.

“Scientific workloads, mentioned earlier, have traditionally been carefully written to exploit as much data-level parallelism as possible with careful use of OpenMP pragmas and other source code annotations. It’s therefore relatively straightforward for a compiler to vectorize such code and make good use of a wider vector unit. Supercomputers are also built with the wide, high- bandwidth memory systems necessary to feed a longer vector unit,” wrote Stephens.

He notes that scientific workloads have traditionally been written to exploit as much data-level parallelism as possible with careful use of OpenMP pragmas and other source code annotations. “It’s relatively straightforward for a compiler to vectorize such code and make good use of a wider vector unit. Supercomputers are also built with the wide, high- bandwidth memory systems necessary to feed a longer vector unit.”
ARM-server-workloads
While HPC is a natural fit for SVE’s longer vectors, said Stephens, it also offers an opportunity to improve vectorizing compilers that will be of general benefit over the longer term as other systems scale to support increased data level parallelism.

Amplifying on the point, he wrote, “It is worth noting at this point that Amdahl’s Law tells us that the theoretical limit of a task’s speedup is governed by the amount of unparallelizable code. If you succeed in vectorizing 10 percent of your execution and make that code run four times faster (e.g. a 256-bit vector allows 4x64b parallel operations), then you reduce 1000 cycles down to 925 cycles and provide a limited speedup for the power and area cost of the extra gates. Even if you could vectorize 50 percent of your execution infinitely (unlikely!) you’ve still only doubled the overall performance. You need to be able to vectorize much more of your program to realize the potential gains from longer vectors.”

The ARMv7 Advanced SIMD (aka the ARM NEON) is now about 12 years old and was originally intended to accelerate media processing tasks on the main processor. With the move to AArch64, NEON gained full IEEE double-precision float, 64-bit integer operations, and grew the register file to thirty-two 128-bit vector registers. These changes, says Stephens, made NEON a better compiler target for general-purpose compute. SVE is a complementary extension that does not replace NEON, and was developed specifically for vectorization of HPC scientific workloads, he says.
Snapshot of new SVE features compared to NEON:
  • Scalable vector length (VL)
  • VL agnostic (VLA) programming
  • Gather-load & Scatter-store
  • Per-lane predication
  • Predicate-driven loop control and management
  • Vector partitioning and SW managed speculation
  • Extended integer and floating- point horizontal reductions
  • Scalarized intra-vector sub-loops
Smythe emphasized, “If you compile the code for SVE it will run on any implementation of SVE regardless of the width, whether 128 or 1024 or 2048, and the hardware implementation, that code will run on ARM architecture as a binary. That’s important and gives us scalability and compatibility into the future for the compilers and the code that HPC guys are writing.”
 ARM ecosystem 
ARM has been steadily working to expand its ecosystem (shown here) with hopes of capturing a chunk of the broader x86 market. It has notable wins in many market segments, although the market traction has been tougher to gauge, and it is only in the past couple of years that server chips started to become available. Many design wins have been niche oriented; one example is an HPE ARM-based storage server (StoreVirtual 3200) announced earlier this month. ARM, of course, is a juggernaut in mobile computing.

Prior to the Hot Chips conference, with its distinctly technical focus, ARM was pre-briefing some of the HPC community about SVE and using the opportunity to reinforce its mission of growth, its success in ecosystem building, and to bask in some of the glory of the post K computer win. Given the recent acquisition of ARM by SoftBank, it will be interesting to watch how the marketing and technical activities change, if at all.

Lakshmi Mandyam, senior marketing director, ARM Server Programs, said, “We’ve been focusing on enabling some base market segments to establish some beachheads and enable our partners to get adoption in those key areas. Also we have also been using key end users to drive our approach in terms of ecosystem enablement because clearly we are catching up with x86 in terms of software enablement.”

“The move to open source and consuming applications and workloads through [as-a-service models] is really driving a lot of disruption of the industry. It also presents an opportunity because a lot of those platforms are based on open source and Linux and or intermediate middleware and so the dependency on the legacy (x86) software and architectures is gone. That presents an opportunity to ARM.”

It’s also important, she said, to recognize that many modern workloads, even in HPC, are moving towards the scale out model as opposed to a purely scale up. Many of those applications are driven by IO and memory performance. “This where the ARM partnership can shine because we are able to deliver heterogeneous computing quite easily and we’re able to deliver optimized algorithm processing quite easily. If you look at a lot of these applications, it’s not about spec and benchmark performance; it’s about what can you deliver in my application.”

“When you think about Fujitsu, as they talked about the post K computer, a lot of the folks are looking for this really tuned performance, to take a codesign approach where they are looking at the entire problem, and to deliver an application and service for a given problem. This is where their ability to tune platforms down to the silicon level pays big dividends,” she said.

Here’s a link to Nigel Stephens’ blog on the ARM SVE anouncment (Technology Update: The Scalable Vector Extension (SVE) for the ARMv8-A Architecture): https://community.arm.com/groups/processors/blog/2016/08/22/technology-update-the-scalable-vector-extension-sve-for-the-armv8-a-architecture


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