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Tackle the Challenges of Parallel Programming in the Visual Effects
Industry In Multithreading for Visual Effects, developers from
DreamWorks Animation, Pixar, Side Effects, Intel, and AMD share
their successes and failures in the messy real-world application
area of production software. They provide practical advice on
multithreading techniques and visual effects used in popular visual
effects libraries (such as Bullet, OpenVDB, and OpenSubdiv), one of
the industry's leading visual effects packages (Houdini), and
proprietary animation systems. This information is valuable not
just to those in the visual effects arena, but also to developers
of high performance software looking to increase performance of
their code. Diverse Solutions to Solve Performance Problems After
an introductory chapter, each subsequent chapter presents a case
study that illustrates how the authors used multithreading
techniques to achieve better performance. The authors discuss the
problems that occurred and explain how they solved them. The case
studies encompass solutions for shaving milliseconds, solutions for
optimizing longer running tasks, multithreading techniques for
modern CPU architectures, and massive parallelism using GPUs. Some
of the case studies include open source projects so you can try out
these techniques for yourself and see how well they work.
This volume contains the results of two archaeological projects
undertaken within the Frome Valley, Gloucestershire. The first
describes a Beaker pit and evidence for a Romano-British settlement
at Foxes Field, Ebley Road, Stonehouse; the second details the
remains of medieval enclosures and a fishpond at Rectory Meadows,
Kings Stanley. There is little to connect the two sites, other than
them being less than a mile apart, with the site at Foxes Field
principally comprising an early Roman-British rural settlement and
late Romano-British burial ground; and the site at Rectory Meadows
featuring medieval paddocks and a late medieval pond. In fact, with
Foxes Field also producing evidence for prehistoric occupation and
for a post-medieval path and plough furrows, the two sites largely
complement each other in terms of period representation. However,
common to both sites is evidence, of just a few fragments of flue
tiles, roof tiles and building rubble, to suggest that late Roman
villas once stood nearby to both locations. It is the recurring
presence of Romano-British remains from archaeological
investigations in the Frome valley, often with such evidence for
high-status buildings, which demonstrates just how populated this
area was during the Roman period in Britain. The burials from Foxes
Field, and in particular the close bond that can be implied between
the man and woman found in the remarkable 'double' grave, serve to
remind us that these discoveries are not just 'relics of a bygone
age', but were once homes to real people who lived, loved and died
beside the river Frome.
This groundbreaking new core textbook encourages students to take a
more critical approach to the prevalent assumptions around the
subject of macroeconomics, by comparing and contrasting heterodox
and orthodox approaches to theory and policy. The first such
textbook to develop a heterodox model from the ground up, it is
based on the principles of Modern Monetary Theory (MMT) as derived
from the theories of Keynes, Kalecki, Veblen, Marx, and Minsky,
amongst others. The internationally-respected author team offer
appropriate fiscal and monetary policy recommendations, explaining
how the poor economic performance of most of the wealthy capitalist
countries over recent decades could have been avoided, and
delivering a well-reasoned practical and philosophical argument for
the heterodox MMT approach being advocated. The book is suitable
for both introductory and intermediate courses, offering a thorough
overview of the basics and valuable historical context, while
covering everything needed for more advanced courses. Issues are
explained conceptually, with the more technical, mathematical
material in chapter appendices, offering greater flexibility of
use. Accompanying online resources for this title can be found at
bloomsburyonlineresources.com/mitchell-macroeconomics. These
resources are designed to support teaching and learning when using
this textbook and are available at no extra cost.
The development of Cabot Circus shopping centre presented a rare
opportunity for the archaeological investigation of a large part of
the Broadmead suburb of Bristol. The former presence of a Dominican
Friary and later Friends' Meeting House were already well known,
and surviving buildings from both remain within a large open piazza
in the west of the new development. Further elements of the friary
complex, including remains of the church and two cloisters, were
revealed in various archaeological interventions within the area of
the former precinct, enabling a reconstruction of the precinct and
its environs to be made. The project has also shed light on other
aspects of the suburb's past that were previously less well known.
Borehole investigations have allowed the prehistoric environment of
the River Frome valley to be characterised, with episodes of
small-scale tree clearance from the surrounding slopes during the
later Neolithic and early Bronze Age, and the floodplain remaining
as mud flats until the development of the Broadmead suburb in the
12th century and the arrival of the Dominicans in the 13th century.
River access and the presence of flowing water were important
assets for the industrial medieval and later suburb, which was home
to tanning, leatherworking, ironworking and cloth industries. The
Dissolution saw the demolition of parts of the friary, and by the
later 17th century the surviving claustral buildings were occupied
by trade guilds and the Quakers had built their first Meeting
House. The 18th and 19th centuries were times of enormous expansion
for Bristol, when large-scale development occurred, expanding the
suburb to the north and east of the former friary. These new
developments included industrial premises, saw mills, cabinet works
and malthouses, alongside terraces and courts of domestic
dwellings. The recovery of a significant assemblage of tobacco pipe
bowls and kiln wasters has enabled the development of new typology
for Bristol, which should prove invaluable in dating future
assemblages recovered from the city.
Two reports are published in this volume: excavations in 2003 at
Blenheim Farm, Moreton-in-Marsh (by Jonathan Hart and Mary
Alexander) and excavations in 2004 at 21 Church Road, Bishop's
Cleeve (by Kate Cullen and Annette Hancocks). Significant remains
recorded at Moreton-in-Marsh include a Middle Bronze Age settlement
of four post-built circular structures partly enclosed by a
segmented ditch, and a series of medieval fields and paddocks with
a possible sheepcote structure. A Middle Palaeolithic handaxe was
also recovered. The Iron Age and medieval remains recorded at
Bishop's Cleeve add to our understanding of past settlement in and
around the village, where extensive development has resulted in a
number of significant excavations in recent years.
Archaeological work in advance of pipeline construction culminated
in excavation at four sites on the Gloucestershire/Worcestershire
border by the Carrant Brook and River Isbourne. Geophysical and
cropmark evidence has been used to enhance interpretation of the
excavated 'slices' across these sites, revealing a changing pattern
of human activity and density of settlement from the Mesoltihic to
the medieval period. Early features, including a possible Early
Neolithic flat grave, suggest that activity in the area prior to
the Middle Iron Age was largely ritual in nature. From the Middle
Iron Age onwards substantial settlement enclosures were constructed
and remained in use to the end of the 1st century AD, when an
increased level of acticity saw some enlarged and others abandoned
and replaced. All four sites were typical of low status Iron Age
and Roman rural settlement in southern England, and all were
abandoned by the 4th century AD, but with some evidence for later
Anglo-Saxon and medieval activity. These excavations add
considerably to our understanding of life and death in the late
prehistoric and Roman periods, and of the distribution of
archaeological remains of all periods, in an area of known
archaeological significance close to the confluence of two major
rivers: the Severn and Avon.
Two reports are published in this volume: excavations in 2004 at
Henbury School, Bristol (by Derek Evans, Neil Holbrook and E.R.
McSloy) and excavations in 2005 at Hewlett Packard, Filton, South
Gloucestershire (by Kate Cullen, Neil Holbrook, Martin Watts, Anwen
Caffell and Malin Holst). Excavations in 2004 at Henbury School,
Bristol, revealed the truncated remains of 21 inhumation burials,
making a total of 28 burials recorded at the site since 1982. Of
these, 24 burials formed a dispersed cemetery of crouched
inhumations, the vast majority of which were aligned north/south
and lay on their left sides, with equal numbers of males and
females (where sex could be determined) and only one child. Poor
bone survival rendered radiocarbon dating invalid, and the cemetery
is dated by only one grave good: a finger ring from the mid to late
Iron Age. However, the cemetery clearly pre-dated a later
rectangular enclosure of very late Iron Age (early 1st-century AD)
date. Crouched inhumations from the later Iron Age are known from
the region but usually from pits or scattered, so the presence of
this cemetery at Henbury is significant. Inhumation cemeteries of
this date are rare in Western Britain, although they may have been
quite widespread. Despite the dearth of surviving features within
the subsequent enclosure, the scale of the ditches suggests it was
a farmstead, and environmental evidence hints at both livestock
rearing and cereal cultivation. Subsequent Roman activity was
clearly intensive, and included a further four burials; although
difficult to interpret, it adds to a substantial amount of evidence
for Roman activity to the north-west of Bristol. Excavations in
2005 at Hewlett Packard, Filton, revealed the truncated remains of
51 inhumation burials within an isolated post-Roman cemetery. All
of the burials were extended and east-west aligned, and were
arranged in rows and groups. The tradition of east/west-aligned
graves is a common late Roman and post-Roman practice, and these
were not necessarily Christian. The largest group comprised 24
burials clustered around a central grave that contained an unusual
skeleton and evidence for a distinctive burial rite. Overall there
were slightly more females than males (where sex could be
determined) and ten children. Adult stature could only be
calculated in a few cases; males were generally taller that the
early medieval average, females shorter. No grave goods were
recovered, but four radiocarbon dates obtained from human bone
suggest a period of use sometime between the 5th and 7th centuries
AD. There was no evidence for contemporary settlement within the
immediate vicinity. Other post-Roman cemeteries that are culturally
distinct from Anglo-Saxon influenced burials are known from the
region. The absence of Anglo-Saxon cemeteries in South
Gloucestershire suggests this area remained under British control
in the 5th and 6th centuries. The abandonment of this cemetery may
have been the result of changes in the religious landscape once the
area finally came under Saxon control in the late 7th century.
In The Royal Marines and the War at Sea 1939-45 military and naval
historian Martin Watts records how marines fought at sea, their
relationship with the Royal Navy, and the overall contribution they
made to victory in the Second World War. Combining personal
narrative with strategical, tactical and technical analysis, this
book is centred on the career of the author's great-uncle, Colour
Sergeant Albert 'Nobby' Elliott, who saw active service in the
Atlantic, Mediterranean, Arctic and Indian Oceans. He was Mentioned
in Despatches at the Second Battle of Sirte, took part in Operation
Torch, and was a gun layer in HMS Jamaicawhen she took part in the
sinking of the German battleship Scharnhorston Boxing Day 1943.
Nobby finished the war recovering Allied prisoners of war from the
south-west Pacific, and was present at the surrender of Japanese
forces while on board HMS Glory.
This volume contains the results of four archaeological projects
undertaken within the historic suburbs of Bristol. Excavations at
nos 26 28 and at nos 55 60 St Thomas Street were both within the
12th-century planned suburb of Redcliffe, just to the southeast of
the medieval city. Investigations at Harbourside and at Cabot
House, Deanery Road, were undertaken in the medieval district of
Billeswick, to the southwest of the city centre and in the vicinity
of Bristol Cathedral, formerly the church of the 12th-century St
Augustine s Abbey. However, it is the general lack of evidence for
significant development at these sites throughout the medieval and
post-medieval periods and up to the beginning of the 18th century
that provides a common theme. The scarcity of evidence for medieval
and post-medieval development at the Billeswick sites, Cabot House
and Harbourside, is unsurprising as both were in the ownership of
the abbey or cathedral throughout this period, and were clearly of
value as undeveloped land, either as parkland (as at Cabot House)
or meadow (i.e. Canon s Marsh at Harbourside). The dearth of
evidence from the St Thomas Street sites in Redcliffe was more
unexpected, though this appears to corroborate documentary evidence
suggesting that this part of the suburb remained something of a
backwater into late post-medieval times. At nos 55 60, there was
little evidence for anything more substantial than simple
boundaries and timber structures, perhaps used for drying cloth,
until the beginning of the 18th century. At nos 26 28 there was no
evidence for tenements until late into the post-medieval period and
the site may well have been part of a medieval grange. The
development of the first substantial buildings at both St Thomas
Street sites, of new streets and terraces at Cabot House, and of
the ropewalks and later industrial development of Canon s Marsh at
Harbourside, all reflect the rapid expansion and building boom
Bristol enjoyed in the 18th century, largely a result of the city s
involvement in the Atlantic trade."
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