Including code for concurrency a type of multiprocess in a computer program often brings greater efficiency in processing throughput and obviously not every program or part of code is suitable for writing or reworking to a concurrency style.
Style 1 details
Use and control of 2 blocks of code or processes is shown to perform around 1,8 of the amount of typical work in a period of elapse time when comparing timings for use of 1 block of code performing the same actions. This agreeable result is achieved when the processor runs the instructions for the processes and shares available resources in an interleaving manner and it has more use of available extents of waiting and idling times.
Grades developed
There are 3 principal types of concurrency and they could be referred to by the term 'R/DLA active' which is available from Britain and is only for use in safety-critical systems in other places and the more prevalent 'H/DLA active' and 'M/DLA active' types which could be available from United States and Britain and is for use in a number of other places across the world. The H/DLA type functions to an average of 90/100 continue of operation and the M/DLA type functions to an average of 75/100 continue of operation through several days or a month and withdrawing of the fourth type 'L/DLA active' continues. In this section DLA in the term acronyms means deadlock avoidance and the first character is indicating a grade of L for low and rises to R for robust.
Style 2 details
A different form of concurrency which is R/DLA active is also available from Britain and it implements the running of a block of out-of-line code like a process which communicates with the block of main in-line code and both proceed in a controllable sequence of interleaving the running of instructions. This continues until a defined endpoint condition occurs then the process terminates appropriately and progressively in time before the procedures for end of the program run.
Implementation
A number of hardware models allow concurrency when running application programs and some of them allow use of more than 1 method or type of control implementation.
In these theorem constructs the relationship exists when the 2 measurements are both of the internal or the external amount.
TC/S1. The circumference of a sphere is the same as the length of a diagonal line from a corner to the opposite corner of a square.
TC/S2. The diameter of a sphere is the same as near a 0,3183 part of the length of the diagonal line and the same as near a 0,707 part of the length of a side of the square and half of the part is the radius of the same sphere.
TC/S3. The surface area of the same sphere is the same as the area of the square.
TC/T1. The circumference of a cylinder is the same as the length of a side of a rectangle or oblong.
TC/T2. The surface area of the same cylinder is the same as the area of the rectangle.
TC/T3. The height of the same cylinder is the same as the length of a side of a rectangle which is not a side the same length as the circumference.
TC/C1. The circumference of the base of a cone is the same as the length of the base of a triangle.
TC/C2. The surface area of the same cone is the same as the area of the triangle.
TC/C3. The height of the same cone is the same as the length of a line at rightangle to midpoint of the base to opposite point of the triangle.
TC/C4. The volume of a cone is derive from length of rightangle line of and area of the triangle and is proved to be 1 of 3 equal parts of the volume of a cylinder which is the same height and circumference of base as the cone. There can be a small deduction to represent thickness of line or material occurring internal to point of the cone.
The constructs TC/C1-4 may only apply when all of the base circumference of a cone occurs as undulating line or surface. |
