Why Arm thinks the future of mobile is “digital immersion”

Arm Total Compute

During his keynote speech at Arm TechCon, VP Marketing for
Client Ian Smythe laid bare the company’s vision for the future
of mobile silicon. And that future is digital immersion, made
possible through its “Total Compute” approach.

Here’s what that means to users and manufacturers.

What is digital immersion?

To Arm, digital immersion means content that engages all the
senses and blurs the line between digital and physical content.
That doesn’t only mean XR experiences – though that is
certainly part of it – it’s also the way we will be
“immersed” in technology of all kinds thanks to IoT. When your
home changes the lighting and the temperature to respond to your
presence (and perhaps your physical cues), that is an example of
digital immersion.

Digital immersion is the merger of the physical and data

After the show, I was able to ask Smythe to elaborate on what
the company meant by the term.

“We’re looking at a world where we’re going to see more
and more interaction both virtually and augmented,” Smythe
explained. “Some will be visual, some won’t be: some will be
sensor based. This is the total engagement of a person in their
environment. The merger of the physical and data worlds.”

Read also: Arm
processors will soon become faster than ever thanks to custom

This is the kind of experience made possible thanks to the
growth of exciting new areas such as 5G,
IoT, and AI. But what can users expect the result to be?

What OEMs are targeting

To help make this a reality, Arm spoke with partners to ask what
kinds of specific applications they wanted to target. One answer
was “real time video blending.”

Video blending is essentially another expression of the kind of
AR tomfoolery we’ve seen apps like Snapchat pull off for years.
The difference is it will involve cutting the user out of the image
and transplanting them into different environments, all in real
time with no need for a green screen or editing software.

This kind of effect is already technically feasible, but it is
certainly limited in scope and accuracy. The objective here (at
least as far as Arm’s unnamed partner is concerned) is to provide
an effect as believable as one delivered by a green screen and
post-production editing, only in real-time.

Hardware manufacturers reportedly had many more specific
requests along these lines, but unfortunately Arm was unable to
divulge further information at this time. The implication though,
was that in future, we could get to a point where IoT and XR are
almost meaningless distinctions; where the line between digital and
physical is almost irrevocably blurred, as devices receive and
handle information from nearly all our interactions, then feed
those back to us to augment our experience of the world around

How Arm plans to deliver digital immersion

So, when can we expect to see this kind of power in our
handsets, and how does Arm expect to deliver it?

A seemingly simple effect like video blending in fact requires a
large amount of processing power and the interplay of many
different elements (from computer vision, to sensor tracking, to
rendering). And that is just one of the less ambitious
applications. The sheer scope of what’s possible is why a
per-use-case approach is going to be needed to provide specific
optimizations across IP, software, and tools. This approach will
also help to tackle the new challenges of scaling, data privacy,
and 5G. This is what Arm refers to as “Total Compute.”

Arm Total Compute Changing the Way We Design IP

“Total Compute is not trying to define a single set of
products – not a single solution. Whether it’s going into a
wearable or whether it goes anywhere else, the solution has to
consist of multiple compute elements that will scale individually
according to the workload,” Smythe explained.

“We have to find a way to make that both secure and
programmable. But the view is that as you increase domain
specificity, it gets harder to program. Trying to understand how to
make performance analysis available to the programmer is

Smythe was clear that this doesn’t include custom instruction
sets coming to A-series CPUs (the ones found in your phones) and
won’t any time soon.

Power, security, and collaboration

What this digitally immersed future does depend
on however is security. As Smythe put it, “There is no privacy
without security.” In other words, people aren’t going to be
willing to integrate technology so thoroughly into their lifestyles
unless they can trust the devices they use to keep it secure. And
that is a responsibility that Arm is tackling head-on with
solutions such as memory tagging and a more modular design
sensibility to help reduce the severity of data breaches (among
other strategies).

Arm Modular Security Design

Another aspect of all this is sheer power. Looking even beyond
the upcoming
Hercules chips
, Arm is preparing the next wave of hardware
currently codenamed “Matterhorn,” scheduled for 2020. These
CPUs will support something called Matrix Multiply, or MatMul for
short, which is expected to double performance over previous
generations and offer particular benefits for ML applications.

Read also: Internet
of Things companies will dominate the 2020s

Other announcements made at TechCon further emphasized a focus
on custom solutions and collaboration. Arm will be working closely
with Unity for example, to provide better optimization for those
graphics-intensive games and virtual reality experiences. And it
will be working with OEMs utilizing the M series of CPUs found in
smaller devices, allowing the utilization of custom instruction
sets (which might find their way into the sensor modules on our

There is no privacy without security.

The aim is to provide scalable and customizable solutions to
OEMs working with their hardware, in order to support their
individual visions for digital immersion. Total compute is designed
to be scalable to meet the hugely varied needs of OEMs in the
coming years.

It’s an exciting time to be a tech enthusiast. Just quite what
shape this immersive future will take, remains to be seen.

Source: FS – Android
Why Arm thinks the future of mobile is “digital immersion”