Stellarton

Stellarton is a town located in the Canadian province of Nova Scotia. It is adjacent and to the south of the larger town of New Glasgow. In pioneer times the area was called Coal Mines Station, and from 1833 until 1870, it was known as Albion Mines. The town was incorporated as Stellarton in 1889 and owes its name to a specific type of torbanite which came to be known as "stellarite" because of the "stars of fire" given off by its sparky flame.

History

In the 1790s, coal quickly became a key focus of the local economy. The Foord coal seam (from which the main street of Stellarton derives its name) runs through most of the town and is part of the greater Stellarton Basin/Pictou Coalfield. As part of an area recognized by geologists for its unique oil shales and thick coal seams, the Foord seam is said to be the thickest in the world with estimate of coal seams being as thick as 48 feet.

In the 1820s, the mines were taken over by the General Mining Association which intensified production with new technology including the first steam engine in Nova Scotia for pumping and in 1839 Samson, the oldest railway locomotive in Canada which carried coal to waiting ships.

Bonnell (microarchitecture)

Bonnell is a CPU microarchitecture used by Intel Atom processors which can execute up to two instructions per cycle. Like many other x86 microprocessors, it translates x86 instructions (CISC instructions) into simpler internal operations (sometimes referred to as micro-ops, effectively RISC style instructions) prior to execution. The majority of instructions produce one micro-op when translated, with around 4% of instructions used in typical programs producing multiple micro-ops. The number of instructions that produce more than one micro-op is significantly fewer than the P6 and NetBurst microarchitectures. In the Bonnell microarchitecture, internal micro-ops can contain both a memory load and a memory store in connection with an ALU operation, thus being more similar to the x86 level and more powerful than the micro-ops used in previous designs. This enables relatively good performance with only two integer ALUs, and without any instruction reordering, speculative execution or register renaming. The Bonnell microarchitecture therefore represents a partial revival of the principles used in earlier Intel designs such as P5 and the i486, with the sole purpose of enhancing the performance per watt ratio. However, Hyper-Threading is implemented in an easy (i.e. low-power) way to employ the whole pipeline efficiently by avoiding the typical single thread dependencies.