JP2001051855A - Memory division management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable memory allocation which takes differences in the performance of a memory (access speed, reliability, etc.), into account. SOLUTION: A memory grouping means 1 divides a memory group mounted on a memory device 5 into memory groups 51, 52...5n by the performance of the memories. A memory allocation object grouping means 2 divides a process group corresponding to a memory allocation object 6 into process groups 61, 62...6m by the priority. A memory and memory allocation object correspondence means 3 makes the memory groups 51, 52...5n and process groups 61, 62...6m correspond to each other. A memory allocating means 4 when allocating memories to a process allocates the memories in the memory group, made to correspond to the process group that the process belongs to, to the process.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a memory management system for managing the allocation of each memory in a memory device mounted on a computer, and more particularly to a memory group (a plurality of memories in a memory device) having access speed and reliability. (The high reliability is a concept including a low failure rate.) The present invention relates to a memory division management method characterized in that the memory is divided into a plurality of memory groups and managed according to the nature of the memory.

[0002]

2. Description of the Related Art In a conventional memory management system, all mounted memories are treated uniformly (even if a large-capacity memory group is mounted, all the memories are treated as the same memory). A), the method of using each memory is not changed depending on the difference in the nature of the memory.

[0003]

The above-mentioned conventional memory management system has the following problems.

The first problem is that even if the access speed of some memories is high (fast), the effect of "improvement of access speed" does not directly lead to the improvement of the performance of the computer in which the memory is mounted. That's what it means.

The reason that such a problem exists is that a memory having a high access speed and a memory having a low access speed (slow) are both used as the same memory. This is because a high place and a low place are mixed.

A second problem is that the investment cost for the memory device increases.

The reason that such a problem exists is that in order to increase the efficiency of a process, which is a typical example of a memory allocation target, with respect to memory reference, all memories mounted on the memory device have a high access speed. It must be changed to something. Also, in order to improve the reliability of the entire memory device, it is necessary to change the reliability of all memories to a high level.

[0008] This problem becomes more remarkable as the capacity of a memory device mounted on a computer increases, as in recent years.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to divide a memory group into a plurality of memory groups according to the characteristics of the memory such as access speed and reliability to manage the memory group. Of each memory in consideration of the level of the memory and the level of reliability, etc., the performance of the computer in which the memory group is mounted can be improved, and the investment cost for the memory device (the performance of the entire memory device) can be improved. It is an object of the present invention to provide a memory division management system that can reduce investment cost necessary for improving the memory cost.

Japanese Patent Application Laid-Open No. S61-156344 discloses a patent publication relating to the prior art for the present invention.
JP-A-3-125223, JP-A-4-29011
No. 4, JP-A-9-152976 and JP-A-10-260894.

The technique described in the above-mentioned Japanese Patent Application Laid-Open No. 3-125223 (object module generation method)
The present invention relates to a method (method) for generating an object module when one program is divided into a plurality of parts and memories having different access speeds are allocated to the respective divided parts.

Here, the above-mentioned prior art is clearly different from the present invention having the following features a and b in that it does not have such features.

A. The present invention relates not to a technique relating to generation of an object module, but to a method of properly using a memory realized in consideration of a difference in a property of the memory.

B. The present invention takes into consideration the "characteristics of memory" in a general sense, and does not target only the access speed of the memory as in the above-described conventional technology. That is, in the present invention, the memory group is divided into a plurality of memory groups and used not only according to the access speed of the memory but also according to the “memory property” such as the failure rate of the memory (one mode of the reliability of the memory). It is also possible.

The technique (memory management system for a computer) disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 4-290114 divides a program into a plurality of blocks and determines whether the divided blocks should be assigned to a main storage device or an auxiliary storage. It is determined whether or not to be assigned to the device according to the frequency of use.

As is apparent from the technical contents described above, the conventional technique divides a memory group into a plurality of memory groups and appropriately uses the divided memory groups (appropriate use of a memory group and a memory allocation target group). The present invention is essentially different from the present invention relating to a technology that takes various measures.

Furthermore, the above-mentioned JP-A-61-156344 has been disclosed.
, Japanese Patent Application Laid-Open Nos. 9-152976 and 10-260894 (Memory device, computer system, and processor with built-in memory)
Means that the area of the random access memory is divided into frequently used areas and infrequently used areas, respectively, and "consideration of process priority".
And the point that "the memory block (area) is divided according to the difference in the access speed" is similar to the present invention. This is a different technology.

[0018]

According to a memory division management system of the present invention, a memory management system for managing the allocation of each memory in a memory device is provided. A memory grouping means for dividing the memory group into memory groups, a memory allocation target grouping means for dividing a process group corresponding to a memory allocation target into a plurality of process groups by priority, and a memory group divided by the memory grouping means. A memory for associating the process group divided by the memory allocation target grouping means with a memory allocation target association means; and
A memory allocating unit that allocates, to the process, a memory belonging to a memory group associated with the process group to which the process belongs based on the association by the memory allocation target associating unit.

According to the memory division management method of the present invention as described above, a computer having a memory device as a component is divided into a plurality of memory groups according to the characteristics of the memory by the memory group mounted on the memory device. Memory grouping means, memory allocation target grouping means for dividing a process group corresponding to a memory allocation target into a plurality of process groups according to priority, memory groups divided by the memory grouping means, and the memory allocation target grouping means And a memory / memory allocation target associating means for associating with the process group divided by the process group, and when allocating a memory to the process, based on the association by the memory / memory allocation target associating means, It is also possible to realize a memory belonging to respond Tagged memory group as a recording medium for recording a program for functioning as a memory allocation means for allocating to the process.

According to a memory division management system of the present invention, in a memory management system for managing allocation of each memory in a memory device, a memory group mounted on the memory device is divided into a plurality of memory groups according to the nature of the memory. Memory allocation grouping means, and a memory allocation target grouping means for dividing an area group corresponding to a memory allocation target into a plurality of area groups according to importance,
A memory / memory allocation target associating unit for associating a memory group divided by the memory grouping unit with an area group divided by the memory allocation target grouping unit; and It is also possible to adopt a configuration including a memory allocating unit that allocates, to the area, a memory belonging to a memory group associated with the area group to which the area belongs based on the association by the allocation target associating unit. Here, as an example of the above-mentioned “grouping by region group importance”, for example,
It is conceivable to divide the area into the kernel area, the shared area, and the process local area in descending order of importance.

According to the memory division management method of the present invention as described above, a computer having a memory device as a constituent element is divided into a plurality of memory groups according to the characteristics of the memory. Memory grouping means, memory allocation target grouping means for dividing an area group corresponding to a memory allocation target into a plurality of area groups according to importance, memory groups divided by the memory grouping means, and the memory allocation target grouping means And a memory / memory allocation target associating means for associating the divided area group with the area group, and, when allocating a memory to the area, based on the association by the memory / memory allocation target associating means. Attached memo guru It is also possible to realize a memory belonging to the flop as a recording medium for recording a program for functioning as a memory allocation means for allocating to the region.

[0022]

Next, the present invention will be described in detail with reference to the drawings.

(1) First Embodiment FIG. 1 is a block diagram showing a configuration of a memory division management system according to a first embodiment of the present invention.

Referring to FIG. 1, a memory division management system according to the present embodiment includes a memory grouping unit 1, a memory allocation target grouping unit 2, a memory / memory allocation target association unit 3, a memory allocation Means 4
And a memory device 5 that is a component of a computer that operates under program control, and a memory allocation target 6 that is a group of processes to which a memory in the memory device 5 is allocated.

The memory grouping means 1 includes a memory device 5
Are divided into a plurality of memory groups 51, 52,..., 5n (n is a positive integer of 2 or more) according to the characteristics of the memory such as access speed and reliability.

The memory allocation target grouping means 2 comprises:
A plurality of processes (process groups) corresponding to the memory allocation target 6 are divided into a plurality of process groups 61, 62, ..., 6m (m is a positive integer of 2 or more) according to the priority of the process.

The memory / memory allocation target associating means 3 includes the memory groups 51, 52,... Divided by the memory grouping means 1 (divided into groups).
5n and the process groups 61, 62,..., 6m divided by the memory allocation target grouping means 2 (divided into groups). At this time, a memory group with a high access speed (a memory group to which a memory with a high access speed belongs) or a highly reliable memory group (a memory group to which a memory with high reliability belongs)
Is associated with a high-priority process group (a process group to which a high-priority process belongs).

When allocating memory to each process belonging to the memory allocation target 6, the memory allocating means 4
The memory is allocated to the process based on a memory allocation request for the process performed from the execution control function in the operating system to the memory management function in the operating system. At that time,
A memory belonging to a memory group corresponding to the process group to which the process belongs is assigned to the process. Here, the correspondence between the memory group and the process group is the one associated by the memory / memory assignment target association unit 3 as described above.

The memory device 5 is a set of a plurality of memories. The memory groups 51, 52,..., 5n (the memories grouped in the order of the nature of the memory, that is, in the order of higher access speed or higher reliability). Group).

In this embodiment, it is assumed that the memory groups 51, 52,..., 5n are grouped in ascending order of access speed.

The memory allocation target 6 is a set of a plurality of processes to which memory is allocated in the computer, and is constituted by process groups 61, 62,..., 6m grouped in descending order of priority. I have.

FIG. 2 is a flowchart showing processing of the memory division management system according to the present embodiment. This processing includes a memory grouping step A1, a process grouping step A2, a memory group / process group association step A3, a memory allocation request presence / absence determination step A4, a memory allocation step A5, and an end determination step A6. Become.

FIG. 3 is a diagram showing a specific example of the correspondence between a memory group and a process group (memory allocation target group) in the memory division management method according to the present embodiment.

Next, the overall operation of the memory division management system according to the present embodiment configured as described above will be described in detail.

It is assumed that a computer to which the memory division management system according to the present embodiment is applied includes a memory device 5 in which a memory group having a different memory access speed is mounted as a component.

The memory grouping means 1 includes a memory device 5
Are divided into groups according to the difference in memory access speed, and each memory group is divided into memory groups 5 in order from the one containing the memory having the higher access speed.
, 5n (step A1 in FIG. 2).

The memory allocation target grouping means 2 divides a group of processes (processes belonging to a memory allocation target 6) to be allocated to a memory and executed by the computer into groups according to differences in process priorities. , Each of the process groups is referred to as a process group
, 6m (step A2).

Next, the memory / memory allocation target associating means 3 associates the memory groups 51, 52, ..., 5n with the process groups 61, 62, ..., 6m (step A3).

The memory / memory allocation target associating means 3 associates a memory group including a memory with a high access speed with a process group including a process with a high priority when associating in step A3. As a specific example, the association in the case where the number of memory groups is three and the number of process groups is four is as shown in FIG. 3, for example. In this example, memory group 51 is associated with process groups 61 and 62, memory group 52 is associated with process group 63, and memory group 53 is associated with process group 64.
Is associated with.

The above processing (processing of steps A1 to A3)
Is completed, execution of the process group on the computer is started.

The memory allocating means 4 issues a memory allocation request to a certain process (a memory allocation request from the execution control function in the operating system to the memory management function in the operating system) during the execution of the process group. Is determined (whether there is a memory allocation request) (step A4).

If it is determined in step A4 that "there is a memory allocation request for a process", the memory allocating unit 4 allocates a memory in the memory device 5 to the process (step A5).

Here, when allocating a memory to a process in step A5, the memory allocating unit 4 allocates a memory from a memory group associated with the process group to which the process belongs by the memory / memory allocation target associating unit 3. To do. According to the above specific example (see FIG. 3), the process group 61
When allocating memory to a process belonging to the group, the memory belonging to the memory group 51 is allocated to the process. When memory is allocated to a process belonging to the process group 63, a memory belonging to the memory group 52 is allocated to the process.

The above memory allocation processing (step A)
Step 5) continues until the execution of the process group on the computer ends.

That is, the memory allocating means 4 terminates the execution of the process group in the computer when it is determined in step A4 that "there is no memory allocation request" or when the "memory allocation processing" in step A5 is terminated. It is determined whether or not the processing has been completed (step A6). If it is determined that the processing has been completed, the entire process is completed. If it has been determined that the processing has not been completed (continued), the control proceeds to the determination of step A4. return.

(2) Second Embodiment FIG. 4 is a block diagram showing a configuration of a memory division management system according to a second embodiment of the present invention.

Referring to FIG. 4, the memory division management method according to the present embodiment includes a memory grouping unit 1, a memory allocation target grouping unit 2, a memory / memory allocation target association unit 3, a memory allocation Means 4
A memory device 5 that is a component of a computer that operates under program control; and a memory allocation target 6 that is a group of regions in the memory device 5 to which memory is allocated.
It is comprised including.

The memory grouping means 1 includes a memory device 5
Are divided into a plurality of memory groups 51, 52,..., 5n (n is a positive integer of 2 or more) according to the characteristics of the memory such as access speed and reliability.

The memory allocation target grouping means 2
A plurality of areas (area groups) corresponding to the memory allocation target 6
Is divided into a plurality of area groups (here, each area group of the kernel area 601, the shared area 602, and the process local area 603) according to the importance of the area.

The memory / memory allocation target associating means 3 includes the memory groups 51, 52,... Divided by the memory grouping means 1 (divided into groups).
5n is associated with a kernel area 601, a shared area 602, and a process local area 603, which are area groups divided (divided into groups) by the memory allocation target grouping means 2. At this time, a memory group with a high access speed (a memory group to which a memory with a high access speed belongs) or a highly reliable memory group (a memory group to which a memory with high reliability belongs)
Is associated with a high importance area group (an area group to which a high importance area belongs; here, the kernel area 601, the shared area 602, and the process local area 603 have high importance in this order).

When allocating memory to each area belonging to the memory allocation target 6, the memory allocating means 4 performs the processing from the execution control function in the operating system to the memory management function in the operating system. A memory is allocated to the area based on the memory allocation request. At this time, the area group (kernel area 601, shared area 60
2 and any of the process local areas 603). Here, the correspondence between the memory group and the area group is the one associated with the memory / memory assignment target association unit 3 as described above.

The memory device 5 is a set of a plurality of memories. The memory groups 51, 52,..., 5n (the memory groups grouped in the order of the nature of the memory, that is, in the order of higher access speed and higher reliability) Group).

In this embodiment, it is assumed that the memory groups 51, 52,..., 5n are grouped in descending order of access speed.

The memory allocation target 6 is a set of a plurality of areas to which memory is to be allocated in the computer, and includes a kernel area 601, a shared area 602, and a process local area 603 grouped in descending order of importance. It is constituted by.

Referring to FIGS. 1 and 4, the memory division management method according to the present embodiment
Are the process groups 61, 62,..., 6 in FIG.
This is different from the memory division management method according to the first embodiment in that it is not an m but an area group (kernel area 601, shared area 602, and process local area 603).

A kernel area 601 is an area (kernel) of an operating system for operating a computer.
It is. The shared area 602 is an area referred to by a plurality of processes. The process local area 603 is an area other than the kernel area 601 and the shared area 602, and is an area of a process.

FIG. 5 is a flowchart showing processing of the memory division management method according to the present embodiment. This processing includes a memory grouping step B1 and an area grouping step B1.
2, a memory group / area group association step B3, a memory allocation request presence / absence determination step B4,
Memory allocation step B5 and end determination step B6
Consists of

FIG. 6 is a diagram showing a specific example of a correspondence between a memory group and an area group (memory allocation target group) in the memory division management method according to the present embodiment.

Next, the overall operation of the memory division management system according to the present embodiment configured as described above will be described in detail.

It is assumed that a computer to which the memory division management system according to the present embodiment is applied includes a memory device 5 in which a memory group having a different memory access speed is mounted.

The memory grouping means 1 comprises a memory device 5
Are divided into groups according to the difference in memory access speed, and each memory group is divided into memory groups 5 in order from the one containing the memory having the higher access speed.
, 5n (step B1 in FIG. 5).

The memory allocation target grouping means 2 divides the area group (area group belonging to the memory allocation target 6) in the computer to which the memory is to be allocated into groups according to the difference in the importance of the area. The area groups are referred to as a kernel area 601, a shared area 602, and a process local area 603 in order from the one containing the area of higher importance (step B).
2).

Next, the memory / memory allocation target associating means 3 associates the memory groups 51, 52,..., 5n with the kernel area 601, the shared area 602, and the process local area 603 (step B3).

The memory / memory allocation target associating means 3 associates a memory group including a memory with a high access speed with an area group including a region with a high degree of importance when associating in step B3. As a specific example, the association when the number of memory groups is four is as shown in FIG. 6, for example. In this example, the memory group 51 is associated with the kernel area 601, the memory group 52 is associated with the shared area 602, and the memory groups 53 and 54 are associated with the process local area 603.

The above processing (processing of steps B1 to B3)
Is completed, execution of the process group on the computer is started.

The memory allocating means 4 issues a memory allocation request to a certain area (a memory allocation request from the execution control function in the operating system to the memory management function in the operating system) in the process of executing the process group. Is determined (whether there is a memory allocation request) (step B4).

If it is determined in step B4 that "there is a memory allocation request for an area", the memory allocation means 4 allocates a memory in the memory device 5 to the area (step B5).

Here, when allocating a memory to an area in step B5, the memory allocating means 4 uses the memory / memory allocation target associating means 3 to assign the area group (kernel area 601, shared area 602, and process area) to which the area belongs. Memory is allocated from a memory group associated with any one of the local areas 603). According to the above specific example (see FIG. 6), when allocating a memory to an area corresponding to the kernel area 601, a memory belonging to the memory group 51 is allocated to the area. When allocating memory to the area corresponding to the shared area 602, the memory group 52
Is allocated to the area.

The above memory allocation processing (step B
Step 5) continues until the execution of the process group on the computer ends.

That is, the memory allocating means 4 terminates the execution of the process group in the computer when it is determined in step B4 that “there is no memory allocation request” or when the “memory allocation processing” in step B5 is terminated. It is determined whether or not the processing has been completed (step B6). If it is determined that the processing has been completed, the entire process is completed. If it has been determined that the processing has not been completed (continued), the control proceeds to the determination of step B4. return.

In the memory division management method according to the present embodiment, the access speed of an area corresponding to the kernel area 601 necessary for execution of the operating system and the area corresponding to the shared area 602 referred to by a plurality of processes are set. Since a high memory is allocated, it is possible to obtain an effect that the execution efficiency of the computer can be increased.

(3) Third Embodiment FIG. 7 is a block diagram showing a configuration of a memory division management system according to a third embodiment of the present invention.

Referring to FIG. 7, the memory division management system according to the third embodiment of the present invention is different from the memory division management system according to the first embodiment shown in FIG. The difference is that a recording medium 70 on which a processing program is recorded is provided. This recording medium 70 may be a magnetic disk, a semiconductor memory, or another recording medium.

The memory division management program is transferred from the recording medium 70 to the computer (memory grouping means 1, memory allocation target grouping means 2, memory / memory allocation target association means 3, memory allocation means 4, memory device 5, and (A computer having a memory allocation target 6) and read the operation of the computer by memory grouping means 1, memory allocation target grouping means 2, memory / memory allocation target association means 3,
And the memory allocation means 4. A memory grouping means 1, a memory allocation target grouping means 2, a memory
The operations of the memory allocation target associating means 3 and the memory allocation means 4 are the same as those of the memory grouping means 1, the memory allocation target grouping means 2, the memory / memory allocation target associating means 3, and the memory in the first embodiment. Since the operation is exactly the same as that of the allocating means 4,
I omit the detailed explanation.

(4) Fourth Embodiment FIG. 8 is a block diagram showing a configuration of a memory division management system according to a fourth embodiment of the present invention.

Referring to FIG. 8, the memory division management system according to the fourth embodiment of the present invention is different from the memory division management system according to the second embodiment shown in FIG. The difference is that a recording medium 80 on which a processing program is recorded is provided. This recording medium 80 may be a magnetic disk, a semiconductor memory, or another recording medium.

The memory division management program is transferred from the recording medium 80 to the computer (memory grouping means 1, memory allocation target grouping means 2, memory / memory allocation target correspondence means 3, memory allocation means 4, memory device 5, and (A computer having a memory allocation target 6) and read the operation of the computer by memory grouping means 1, memory allocation target grouping means 2, memory / memory allocation target association means 3,
And the memory allocation means 4. A memory grouping means 1, a memory allocation target grouping means 2, a memory
The operations of the memory allocation target associating means 3 and the memory allocation means 4 are the same as those of the memory grouping means 1, the memory allocation target grouping means 2, the memory / memory allocation target associating means 3, and the memory in the second embodiment. Since the operation is exactly the same as that of the allocating means 4,
I omit the detailed explanation.

[0078]

As described above, according to the present invention,
The following effects are produced.

The first effect is that a memory device including a plurality of memories having different characteristics (access speed, reliability, and the like) of a memory can be operated in consideration of the characteristics (applicable to the characteristics of each memory). This makes it possible to use the respective memories.)

More specifically, it is possible to effectively use memories having different access speeds, and to reduce the influence of a memory failure when the failure occurs.

The reason why such an effect occurs is that a memory having a high access speed or a memory having a low failure rate (a highly reliable memory) is provided in a process having a high priority or an area having a high importance.
Can be assigned.

The second effect is to increase the execution efficiency of the process only by increasing some of the memories without increasing the access speed of all the memories of the memory device which is a component of the computer. That you can do it.

The reason for this effect is that a memory with a high access speed can be allocated to a process with a high priority.

In general, since a memory with a high access speed is expensive, the present invention can achieve high execution efficiency with a minimum cost based on the second effect (the investment cost for the memory device is small). Can be achieved).

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a memory division management system according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a process of a memory division management system shown in FIG. 1;

3 is a diagram showing a specific example of a correspondence between a memory group and a memory allocation target group (process group) in the memory division management system shown in FIG. 1;

FIG. 4 is a block diagram showing a configuration of a memory division management system according to a second embodiment of the present invention.

FIG. 5 is a flowchart showing a process of a memory division management system shown in FIG. 4;

6 is a diagram showing a specific example of a correspondence between a memory group and a memory allocation target group (area group) in the memory division management system shown in FIG. 4;

FIG. 7 is a block diagram showing a configuration of a memory division management system according to a third embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a memory division management system according to a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 memory grouping means 2 memory allocation target grouping means 3 memory / memory allocation target association means 4 memory allocation means 5 memory device 6 memory allocation target 51, 52, ..., 5n memory group 61, 62, ..., 6m process group 70,80 Recording medium 601 Kernel area 602 Shared area 603 Process local area

Claims (9)

[Claims] 1. A memory management method for managing the allocation of each memory in a memory device, comprising: a memory grouping means for dividing a memory group mounted on the memory device into a plurality of memory groups according to the nature of the memory; Memory allocation target grouping means for dividing a process group corresponding to a target into a plurality of process groups according to priority, a memory group divided by the memory grouping means, and a process group divided by the memory allocation target grouping means And a memory group associated with the process group to which the process belongs, based on the association by the memory / memory allocation object associating unit when allocating the memory to the process. A memory allocating means for allocating a memory belonging to a loop to the process. 2. A memory grouping means for setting a “memory property” to “memory access speed” to be considered when dividing into memory groups, and a high access speed when associating a memory group with a process group. 2. The memory division management system according to claim 1, further comprising a memory / memory allocation target association unit that associates the memory group with a process group having a high priority. 3. A memory grouping means for setting “memory characteristics” to “memory reliability” to be considered when dividing into memory groups, and a highly reliable memory group and a process group when associating the memory groups with the process groups. 2. The memory division management system according to claim 1, further comprising a memory / memory allocation target association unit that associates the memory group with a process group having a high priority. 4. In a memory management system for managing allocation of each memory in a memory device, a memory grouping means for dividing a memory group mounted on the memory device into a plurality of memory groups according to a property of the memory, Memory allocation target grouping means for dividing an area group corresponding to a target into a plurality of area groups according to importance; a memory group divided by the memory grouping means; and an area group divided by the memory allocation target grouping means. And a memory / memory allocation target associating means for associating the memory group with the memory group associated with the area group to which the area belongs based on the association by the memory / memory allocation target associating means. Assign the memory A memory allocating means for allocating to the area. 5. A memory allocation target grouping means for dividing an area group corresponding to a memory allocation target into respective area groups of a kernel area, a shared area, and a process local area in descending order of importance. Item 4. The memory division management method according to Item 4. 6. A memory grouping means for setting a “memory property” to “memory access speed” to be considered when dividing into memory groups, and a high access speed when associating a memory group with an area group. 6. The memory division management system according to claim 4, further comprising a memory / memory allocation target associating unit for associating a memory group with an area group having a high importance. 7. A memory grouping unit that sets “memory properties” to “memory reliability” to be considered when dividing into memory groups, and a high reliability when associating a memory group with an area group. 5. A memory / memory allocation target associating means for associating a memory group with an area group having a high importance.
6. The memory division management method according to claim 5. 8. A memory grouping means for dividing a computer having a memory device as a constituent element into a plurality of memory groups according to the nature of a memory mounted on the memory device, and a process group corresponding to a memory allocation target. Allocation grouping means for dividing the memory group into a plurality of process groups according to priority, and memory / memory allocation for associating the memory group divided by the memory grouping means with the process group divided by the memory allocation target grouping means When allocating a memory to the target association unit and the process, the memory belonging to the memory group associated with the process group to which the process belongs is determined based on the association by the memory / memory allocation target association unit. A recording medium on which a program for functioning as a memory allocating unit to be allocated to a process is recorded. 9. A memory grouping means for dividing a computer having a memory device as a constituent element into a plurality of memory groups according to the nature of a memory mounted on the memory device, and an area group corresponding to a memory allocation target. Allocation grouping means for dividing the memory group into a plurality of area groups according to importance, and memory / memory allocation for associating the memory group divided by the memory grouping means with the area group divided by the memory allocation grouping means When assigning memory to the target association means and the area,
A recording medium storing a program for functioning as a memory allocating means for allocating a memory belonging to a memory group associated with an area group to which the area belongs to the area based on the association by the memory / memory allocation target associating means. .