Search results
Results from the WOW.Com Content Network
The first use of SIMD instructions was in the ILLIAC IV, which was completed in 1966.. SIMD was the basis for vector supercomputers of the early 1970s such as the CDC Star-100 and the Texas Instruments ASC, which could operate on a "vector" of data with a single instruction.
Single instruction, multiple threads (SIMT) is an execution model used in parallel computing where single instruction, multiple data (SIMD) is combined with multithreading. It is different from SPMD in that all instructions in all "threads" are executed in lock-step.
The x86 instruction set has several times been extended with SIMD (Single instruction, multiple data) instruction set extensions.These extensions, starting from the MMX instruction set extension introduced with Pentium MMX in 1997, typically define sets of wide registers and instructions that subdivide these registers into fixed-size lanes and perform a computation for each lane in parallel.
This example starts with an algorithm ("IAXPY"), first show it in scalar instructions, then SIMD, then predicated SIMD, and finally vector instructions. This incrementally helps illustrate the difference between a traditional vector processor and a modern SIMD one. The example starts with a 32-bit integer variant of the "DAXPY" function, in C:
Baking powder is another type of leavener used to aerate baked goods. It is made up of baking soda and a dry acid. When it comes into contact with liquid, gas (CO2) bubbles are released.
At any time, different processors may be executing different instructions on different pieces of data. MIMD architectures may be used in a number of application areas such as computer-aided design / computer-aided manufacturing , simulation , modeling , and as communication switches .
To use baking powder when baking soda is called for: Simply use 3 times the amount of baking powder. So if your recipe calls for 1 teaspoon baking soda so you would need 3 teaspoons of baking powder.
Both baking soda and baking powder are used to make baked goods light and fluffy. If you've ever ended up with a rock-hard platter of brownies, ...