Computers: General License Eligibility; Supercomputer Definition

DEPARTMENT OF COMMERCE

Bureau of Export Administration

15 CFR Parts 770, 772, 773, 776, and 799

[Docket No. 931245-3345]

Computers: General License Eligibility; Supercomputer Definition

AGENCY: Bureau of Export Administration, Commerce.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The Bureau of Export Administration (BXA) is amending the

Export Administration Regulations (EAR) to revise the definition of

``supercomputers''. This final rule increases the ``supercomputer''

threshold level from a CTP (composite theoretical performance) equal to

or exceeding 195 Mtops (million theoretical operations per second) to a

CTP equal to or exceeding 1,500 Mtops.

This rule also increases the General License GFW eligibility level

for digital computers controlled by ECCN 4A03A to a CTP of 500 Mtops or

less for eligible countries listed in the Nuclear Nonproliferation

Special Country List (i.e., Supplement No. 4) and 1,000 Mtops or less

for other eligible countries. To conform with recent COCOM changes to

the International Industrial List (IL), this rule makes General License

G-DEST available for exports of ``digital'' computers with a ``CTP''

not exceeding 260 Mtops, except to Country Groups S and Z, Iran, Syria,

and South African military and police entities. The Department of the

Treasury's Office of Foreign Assets Control maintains an embargo on

other destinations, such as Iraq and the Federal Republic of Yugoslavia

(Serbia and Montenegro).

In addition, this rule raises the level at which nuclear

nonproliferation controls apply to digital computers controlled by

ECCNs 4A01A, 4A02A, and 4A03A. Nuclear nonproliferation controls now

apply to computers with a CTP exceeding 500 Mtops for countries listed

in Supplement No. 4.

This rule makes more computers eligible for export under the

special license procedures because the eligibility levels for certain

countries are tied to either the supercomputer threshold level or the

nuclear nonproliferation control level for computers, both of which are

increased by this rule.

Finally, this rule revises the Technical Note in the Commerce

Control List that provides instructions on calculating ``CTP''.

EFFECTIVE DATE: February 24, 1994.

FOR FURTHER INFORMATION CONTACT: For technical information on computers

contact Joseph Young, Information Sytems Technology Center, Office of

Technology and Policy Analysis, Telephone: (202) 482-0706.

For information on licensing policies and procedures applicable to

supercomputers, contact Gene Peterson-Beard, Office of Technology and

Policy Analysis, Telephone: (202) 482-4220.

SUPPLEMENTARY INFORMATION:

Background

This interim rule revises the definition of a supercomputer,

expands the General License GFW eligibility level for digital computers

controlled by ECCN 4A03A, raises the levels at which nuclear

nonproliferation controls apply to computers controlled by ECCNs 4A01A,

4A02A, and 4A03A, and makes more computers eligible for export under

the special license procedures.

In international negotiations with our partner in the supercomputer

regime, we have reached agreement on a new supercomputer threshold

level. Accordingly, this rule revises the definition of

``supercomputer'' in Sec. 770.2 and Sec. 776.11(a) to increase the

supercomputer threshold level from a CTP (composite theoretical

performance) equal to or exceeding 195 Mtops (million theoretical

operations per second) to a CTP equal to or exceeding 1,500 Mtops. The

United States continues to seek an agreement that would increase the

supercomputer threshold level to 2,000 Mtops. Following the completion

of negotiations with our supercomputer partner, the Bureau of Export

Administration (BXA) intends to publish a rule that will revise the

supercomputer safeguards that apply to certain countries.

This rule also increases the General License GFW eligibility level

for digital computers controlled by ECCN 4A03A from a CTP less than 195

Mtops to a CTP of 500 Mtops or less for eligible countries listed in

Supplement No. 4 to part 778 and a CTP of 1,000 Mtops or less for other

eligible countries. Subject to the restrictions in Sec. 771.2(c), items

eligible for General License GFW may be exported to most destinations

in Country Groups T and V. General License GFW is not available for

exports to Iran, Syria, the People's Republic of China, or the South

African military or police and a validated license continues to be

required for exports of all computers controlled by ECCN 4A03A to these

destinations.

To conform with recent COCOM changes to the International

Industrial List (IL), this rule amends the Validated License Required

paragraph in ECCN 4A03A to indicate that General License G-DEST is

available for exports of ``digital'' computers with a ``CTP'' not

exceeding 260 Mtops, except to Country Groups S and Z, Iran, Syria, and

South African military and police entities.

National security-based validated license requirements continue to

apply to: (1) Exports of ``digital computers'' with a CTP exceeding 260

Mtops to controlled destinations and to all other destinations not

eligible for General License GFW and (2) exports to GFW-eligible

destinations of ``digital computers'' that exceed the GFW eligibility

levels (i.e., 500 Mtops or less for eligible Supplement No. 4 countries

and 1,000 Mtops or less for other eligible countries).

Foreign policy-based validated license requirements remain in

effect for exports of computers controlled by ECCNs 4A03A and 4A94F

(i.e., computers with a CTP of 6 Mtops or greater) to Iran or Syria and

for exports of all computers to Country Groups S and Z, and South

African military and police entities. Exporters should also be aware

that the Department of the Treasury's Office of Foreign Assets Control

maintains an embargo on other destinations, such as Iraq and the

Federal Republic of Yugoslavia (Serbia and Montenegro).

This rule also amends ECCNs 4A01A, 4A02A, and 4A03A to increase the

level at which nuclear nonproliferation controls apply to computers.

Nuclear nonproliferation controls now apply only for exports of

computers with a CTP exceeding 500 Mtops to countries listed in

Supplement No. 4 to part 778. Previously, nuclear nonproliferation

controls applied to computers with a CTP of 195 Mtops or above for

countries listed in Supplement No. 4 to part 778.

This rule makes more computers eligible for export under the

special license procedures. Destinations that are not subject to

nuclear nonproliferation controls, and not eligible to receive

supercomputers under the special license procedures, are eligible to

receive computers below the new supercomputer threshold level, i.e.,

1,500 Mtops. Countries for which exports of computers with a CTP above

500 Mtops are subject to nuclear nonproliferation controls are now

eligible to receive computers with a CTP of 500 Mtops or less.

Section 772.1 is amended by adding a new paragraph (h) to inform

exporters that validated license conditions are terminated when items

are decontrolled. Exporters who have received validated licenses

containing restrictive conditions for items that are now eligible for

shipment under a general license (e.g., General Licenses GFW, GCT, or

G-DEST) may use the appropriate general license to export such items,

subject only to the specific conditions that apply to the use of these

general licenses. Exporters should be aware, however, of the general

prohibitions in Sec. 771.2(c) concerning the use of general licenses

and of the validated license requirements that apply to certain

nuclear, missile technology, or chemical-biological weapons activities

described in Sec. 778.3, Sec. 778.7, Sec. 778.8, and Sec. 778.9.

Finally, this rule revises the Technical Note under the heading

``Information on How to Calculate Composite Theoretical Performance

(CTP)'' at the end of Category 4 in the Commerce Control List (CCL).

The changes in this Technical Note may affect the control status of

certain computers (e.g., eligibility for export under General License

G-DEST, GFW, or GCT), as well as whether or not a computer is treated

as a supercomputer.

Saving Clause

Shipments of items removed from general license authorizations as a

result of this regulatory action that were on dock for loading, on

lighter, laden aboard an exporting carrier, or en route aboard carrier

to a port of export pursuant to actual orders for export before March

10, 1994 may be exported under the previous general license provisions

up to and including March 24, 1994. Any such items not actually

exported before midnight March 24, 1994, require a validated export

license in accordance with this regulation.

Rulemaking Requirements

1. This rule was reviewed by the Office of Management and Budget

under Executive Order 12866.

2. This rule involves collections of information subject to the

Paperwork Reduction Act of 1980 (44 U.S.C. 3501 et seq.). These

collections have been approved by the Office of Management and Budget

under control numbers 0694-0005, 0694-0010, 0694-0013, 0694-0015, and

0694-0073.

3. This rule does not contain policies with Federalism implications

sufficient to warrant preparation of a Federalism assessment under

Executive Order 12612.

4. Because a notice of proposed rulemaking and an opportunity for

public comment are not required to be given for this rule by section

553 of the Administrative Procedure Act (5 U.S.C. 553) or by any other

law, under section 3(a) of the Regulatory Flexibility Act (5 U.S.C.

603(a) and 604(a)) no initial or final Regulatory Flexibility Analysis

has to be or will be prepared.

5. The provisions of the Administrative Procedure Act, 5 U.S.C.

553, requiring notice of proposed rulemaking, the opportunity for

public participation, and a delay in the effective date, are

inapplicable because this regulation involves a military or foreign

affairs function of the United States. Further, no other law requires

that a notice of proposed rulemaking and an opportunity for public

comment be given for this rule.

Therefore, this regulation is issued in final form. Although there

is no formal comment period, public comments on this regulation are

welcome on a continuing basis. Comments should be submitted to Willard

Fisher, Office of Technology and Policy Analysis, Bureau of Export

Administration, Department of Commerce, P.O. Box 273, Washington, DC

20044.

List of Subjects

15 CFR Part 770

Administrative practice and procedure.

15 CFR Parts 772, 773, 776, and 799

Exports, Reporting and recordkeeping requirements.

Accordingly, parts 770, 772, 773, 776, and 799 of the Export

Administration Regulations (15 CFR parts 730-799) are amended as

follows:

1. The authority citation for 15 CFR parts 770, 772, and 799 is

revised to read as follows:

Authority: Pub. L. 90-351, 82 Stat. 197 (18 U.S.C. 2510 et

seq.), as amended; sec. 101, Pub. L. 93-153, 87 Stat. 576 (30 U.S.C.

185), as amended; sec. 103, Pub. L. 94-163, 89 Stat. 877 (42 U.S.C.

6212), as amended; secs. 201 and 201(11)(e), Pub. L. 94-258, 90

Stat. 309 (10 U.S.C. 7420 and 7430(e)), as amended; Pub. L. 95-223,

91 Stat. 1626 (50 U.S.C. 1701 et seq.); Pub. L. 95-242, 92 Stat. 120

(22 U.S.C. 3201 et seq. and 42 U.S.C. 2139a); sec. 208, Pub. L. 95-

372, 92 Stat. 668 (43 U.S.C. 1354); Pub. L. 96-72, 93 Stat. 503 (50

U.S.C. App. 2401 et seq.), as amended (extended by Pub. L. 103-10,

107 Stat. 40); sec. 125, Pub. L. 99-64, 99 Stat. 156 (46 U.S.C.

466c); E.O. 11912 of April 13, 1976 (41 FR 15825, April 15, 1976);

E.O. 12002 of July 7, 1977 (42 FR 35623, July 7, 1977), as amended;

E.O. 12058 of May 11, 1978 (43 FR 20947, May 16, 1978; E.O. 12214 of

May 2, 1980 (45 FR 29783, May 6, 1980); E.O. 12735 of November 16,

1990 (55 FR 48587, November 20, 1990), as continued by Notice of

November 12, 1993 (58 FR 60361, November 15, 1993); E.O. 12867 of

September 30, 1993 (58 FR 51747, October 4, 1993); and E.O. 12868 of

September 30, 1993 (58 FR 51749, October 4, 1993).

2. The authority citation for 15 CFR part 773 is revised to read as

follows:

Authority: Pub. L. 90-351, 82 Stat. 197 (18 U.S.C. 2510 et

seq.), as amended; Pub. L. 95-223, 91 Stat. 1626 (50 U.S.C. 1701 et

seq.); Pub. L. 95-242, 92 Stat. 120 (22 U.S.C. 3201 et seq. and 42

U.S.C. 2139a); Pub. L. 96-72, 93 Stat. 503 (50 U.S.C. App. 2401 et

seq.), as amended (extended by Pub. L. 103-10, 107 Stat. 40); E.O.

12002 of July 7, 1977 (42 FR 35623, July 7, 1977), as amended; E.O.

12058 of May 11, 1978 (43 FR 20947, May 16, 1978; E.O. 12214 of May

2, 1980 (45 FR 29783, May 6, 1980); E.O. 12735 of November 16, 1990

(55 FR 48587, November 20, 1990), as continued by Notice of November

12, 1993 (58 FR 60361, November 15, 1993); E.O. 12867 of September

30, 1993 (58 FR 51747, October 4, 1993); and E.O. 12868 of September

30, 1993 (58 FR 51749, October 4, 1993).

3. The authority citation for 15 CFR part 776 is revised to read as

follows:

Authority: Pub. L. 90-351, 82 Stat. 197 (18 U.S.C. 2510 et

seq.), as amended; Pub. L. 95-223, 91 Stat. 1626 (50 U.S.C. 1701 et

seq.); Pub. L. 95-242, 92 Stat. 120 (22 U.S.C. 3201 et seq. and 42

U.S.C. 2139a); Pub. L. 96-72, 93 Stat. 503 (50 U.S.C. App. 2401 et

seq.), as amended (extended by Pub. L. 103-10, 107 Stat. 40); sec.

125, Pub. L. 99-64, 99 Stat. 156 (46 U.S.C. 466c); E.O. 12002 of

July 7, 1977 (42 FR 35623, July 7, 1977), as amended; E.O. 12058 of

May 11, 1978 (43 FR 20947, May 16, 1978; E.O. 12214 of May 2, 1980

(45 FR 29783, May 6, 1980); E.O. 12735 of November 16, 1990 (55 FR

48587, November 20, 1990), as continued by Notice of November 12,

1993 (58 FR 60361, November 15, 1993); E.O. 12867 of September 30,

1993 (58 FR 51747, October 4, 1993); and E.O. 12868 of September 30,

1993 (58 FR 51749, October 4, 1993).

PART 770--[AMENDED]

4. Section 770.2 is amended by revising the definition of

``supercomputers'' to read as follows:

Sec. 770.2 Definitions of terms.

* * * * *

Supercomputer. A ``supercomputer'' is any computer with a Composite

Theoretical Performance (CTP) equal to or exceeding 1,500 Mtops

(million theoretical operations per second). For calculation of CTP,

see the Technical Note that follows the Advisory Notes for Category 4

in the Commerce Control List (Supplement No. 1 to Sec. 799.1 of this

subchapter).

* * * * *

PART 772--[AMENDED]

5. Section 772.1 is amended by adding a new paragraph (h) to read

as follows:

Sec. 772.1 General provisions.

* * * * *

(h) Terminating validated license conditions. Exporters who have

shipped under validated licenses containing conditions that would not

apply to an export under a general license, and foreign consignees who

have agreed to such conditions, are no longer bound by the conditions

when the licensed items become eligible for shipment under a general

license (e.g., GFW, GCT, G-DEST). Items that were exported under such

licenses remain subject to the conditions of permissive reexports and

any applicable general licenses on which they are based, as well as the

general prohibitions in Sec. 771.2(c) of this subchapter on the use of

general licenses. Termination of validated license conditions does not

relieve persons of responsibility for any violations that may have

occurred before availability of a general license.

PART 773--[AMENDED]

Supplement No. 1 to Part 773 [Amended]

6. Supplement No. 1 to part 773 is amended by revising in paragraph

(l)(1) the phrase ``of less than 195 MTOPS'' to read ``that does not

exceed 500 MTOPS''.

PART 776--[AMENDED]

7. Section 776.11(a) is revised to read as follows:

Sec. 776.11 Supercomputers.

* * * * *

(a) Definition of ``supercomputer''. A supercomputer is any

computer with a Composite Theoretical Performance (CTP) equal to or

exceeding 1,500 MTOPS (million theoretical operations per second). For

calculation of the CTP, see the Technical Note that follows the

Advisory Notes for Category 4 in the Commerce Control List (Supplement

No. 1 to Sec. 799.1 of this subchapter).

* * * * *

PART 799--[AMENDED]

Supplement No. 1 to Sec. 799.1 [Amended]

8. In Supplement No. 1 to Section 799.1 (the Commerce Control

List), Category 4 (Computers), ECCN 4A01A is amended by revising the

Requirements section to read as follows:

4A01A Electronic computers and related equipment, as follows, and

``assemblies'' and specially designed components therefor.

Requirements

Validated License Required: QSTVWYZ

Units: Computers and peripherals in number; parts and accessories in

Sec. value

Reason for Control: NS, MT, NP, FP (see Notes)

GLV: $5,000 for 4A01.a only; $0 for 4A01.b

GCT: Yes, except MT (see Notes) and except supercomputers as defined in

Sec. 776.11(a) (no supercomputer restriction for Japan)

GFW: No

Notes: 1. MT controls apply to 4A01.a.

2. NP controls apply to computers with a CTP exceeding 500 Mtops

to countries listed in Supplement No. 4 to part 778 of this

subchapter.

3. FP controls apply to all destinations, except Japan, for

supercomputers (see Sec. 776.11 of this subchapter).

* * * * *

Supplement No. 1 to Sec. 799.1 [Amended]

9. In Supplement No. 1 to Section 799.1 (the Commerce Control

List), Category 4 (Computers), ECCN 4A02A is amended by revising the

Requirements section to read as follows:

4A02A ``Hybrid computers'', as follows, and ``assemblies'' and

specially designed components therefor.

Requirements

Validated License Required: QSTVWYZ

Unit: Computers and peripherals in number; parts and accessories in $

value

Reason for Control: NS, MT, NP, FP (see Notes)

GLV: $5,000

GCT: Yes, except MT (see Notes) and except supercomputers as defined in

Sec. 776.11(a) (no supercomputer restriction for Japan)

GFW: No

Notes: 1. MT controls apply to hybrid computers combined with

specially designed ``software'', for modeling, simulation, or design

integration of complete rocket systems and unmanned air vehicle

systems described in Sec. 787.7 of this subchapter.

2. NP controls apply to computers with a CTP exceeding 500 Mtops

to countries listed in Supplement No. 4 to part 778 of this

subchapter.

3. FP controls apply to all destinations, except Japan, for

supercomputers (see Sec. 776.11 of this subchapter).

* * * * *

Supplement No. 1 Sec. 799.1 [Amended]

10. In Supplement No. 1 to Section 799.1 (the Commerce Control

List), Category 4 (Computers), ECCN 4A03A is amended by revising the

Requirements section to read as follows:

4A03A ``Digital computers'', ``assemblies'', and related equipment

therefor, as described in this entry, and specially designed components

therefor.

Requirements

Validated License Required: QSTVWYZ (The ``CTP'' level in 4A03.c

notwithstanding, General License G-DEST is available for exports of

``digital'' computers with a ``CTP'' not exceeding 260 Mtops, except to

Country Groups S and Z, Iran, Syria, and South African military and

police entities.)

Unit: Computers and peripherals in number; parts and accessories in $

value

Reason for Control: NS, MT, NP, FP (see Notes)

GLV: $5,000

GCT: Yes, except MT and FP, and except supercomputers as defined in

Sec. 776.11(a) (no supercomputer restriction for Japan); see Notes

GFW: Yes, except MT and FP (see Notes), for the following items:

a. Equipment described in Advisory Note 4; and

b. Computers with a CTP not exceeding 1,000 Mtops (500 Mtops for

eligible countries listed in Supp. 4 to part 778 of this subchapter)

and specially designed components therefor, exported separately or as

part of a system, and related equipment therefor when exported with

these computers as part of a system.

N.B. 1: General License GFW is not available for the export of

commodities that the exporter knows will be used to:

a. Enhance the performance capability (i.e., CTP) of a computer to

the ``supercomputer'' level; or

b. Enhance the performance capability of a ``supercomputer'' (see

Sec. 776.11 for definition of ``supercomputer'').

N.B. 2: To determine whether General License GFW may be used to

export related equipment controlled under another entry in the CCL,

consult the GFW paragraph under the Requirements heading of the

appropriate entry.

Notes: 1. MT controls apply to digital computers used as

ancillary equipment for test facilities and equipment that are

controlled by 9B05 or 9B06.

2. NP controls apply to computers with a CTP exceeding 500 Mtops

to countries listed in Supplement No. 4 to part 778 of this

subchapter.

3. FP controls apply to computers for computerized fingerprint

equipment to all destinations except Australia, Japan, New Zealand

and members of NATO.

4. FP controls apply to all destinations, except Japan, for

supercomputers (see Sec. 776.11 of this subchapter).

5. FP controls apply to Iran and Syria for computers controlled

by 4A03A or 4A94F (i.e., computers with a CTP of 6 Mtops or

greater). See Sec. 785.4(d)(1) of this subchapter.

* * * * *

11. In Category 4 (Computers), following Advisory Note 7, the

Technical Note under the heading ``Information on How to Calculate

Composite Theoretical Performance (CTP)'' is revised to read as

follows:

Information on How to Calculate ``Composite Theoretical

Performance'' (``CTP''):

Technical Note: ``Composite theoretical performance'' (CTP).

Abbreviations used in this Technical Note

CE ``computing element'' (typically an arithmetic logical unit)

FP floating point

XP fixed point

t execution time

XOR exclusive OR

CPU central processing unit

TP theoretical performance (of a single CE)

CTP ``composite theoretical performance'' (multiple CEs)

R effective calculating rate

WL word length

L word length

* multiply

Execution time `t' is expressed in microseconds, TP and ``CTP'' are

expressed in Mtops (millions of theoretical operations per second) and

WL is expressed in bits.

Outline of ``CTP'' Calculation Method

``CTP'' is a measure of computational performance given in millions

of theoretical operations per second (Mtops). In calculating the

``Composite Theoretical Performance'' (``CTP'') of an aggregation of

``Computing Elements'' (``CEs''), the following three steps are

required:

1. Calculate the effective calculating rate (R) for each

``computing element'' (``CE'');

2. Apply the word length adjustment (L) to the effective

calculating rate (R), resulting in a Theoretical Performance (TP) for

each ``computing element'' (``CE'');

3. If there is more than one ``computing element'' (``CE''),

combine the Theoretical Performances (TPs), resulting in a ``Composite

Theoretical Performance'' (``CTP'') for the aggregation.

Details for these steps are given in the following section.

Note 1: For aggregations of multiple ``computing elements''

(``CEs'') that have both shared and unshared memory subsystems, the

calculation of ``CTP'' is completed hierarchically, in two steps:

first, aggregate the groups of ``computing elements'' (``CEs'')

sharing memory; second calculate the ``CTP'' of the groups using the

calculation method for multiple ``computing elements'' (``CEs'') not

sharing memory.

Note 2: ``Computing elements'' (``CEs'') that are limited to

input/output and peripheral functions (e.g., disk drive,

communication and video display controllers) are not aggregated into

the ``CTP'' calculation.

The following table shows the method of calculating the

Effective Calculating Rate (R) for each ``Computing Element''

(``CE''):

Step 1: The effective calculating rate R.

------------------------------------------------------------------------

For computing elements (CEs)

Implementing: Note: Every ``CE'' Effective calculating rate, R

must be evaluated independently

------------------------------------------------------------------------

XP only (Rxp)...................... 1 3 * (txp add).

If no add is implemented use: 1

(txp mult).

If neither add nor multiply is

implemented use the fastest

available arithmetic operation as

follows:

1 3 * (txp).

See Notes X and Y.

FP only (Rfp)...................... Max 1 tfp add,

1 tfp mult.

See Notes X and Y.

Both FP and XP (R)................. Calculate both Rxp, Rfp.

For simple logic processors not 1 3 * tlog.

implementing any of the specified

arithmetic operations.

Where tlog is the execute time of

the XOR, or for logic hardware not

implementing the XOR, the fastest

simple logic operation.

See Notes X and Z.

For special logic processors not R = Rt * WL/64, Where R is the

using any of the specified number of results per second, WL

arithmetic or logic operations. is the number of bits upon which

the logic operation occurs, and 64

is a factor to normalize to a 64

bit operation.

------------------------------------------------------------------------

Note W: For a pipelined ``CE'' capable of executing up to one

arithmetic or logic operation every clock cycle after the pipeline

is full, a pipelined rate can be established. The effective

calculating rate (R) for such a ``CE'' is the faster of the

pipelined rate or non-pipelined execution rate.

Note X: For a ``CE'' that performs multiple operations of a

specific type in a single cycle (e.g., two additions per cycle or

two identical logic operations per cycle), the execution time t is

given by:

TR24FE94.027

``Computing elements'' (``CEs'') that perform different types of

arithmetic or logic operations in a single machine cycle are to be

treated as multiple separate ``computing elements'' (``CEs'')

performing simultaneously (e.g., a ``CE'' performing an addition and

a multiplication in one cycle is to be treated as two ``CEs'', the

first performing an addition in one cycle and the second performing

a multiplication in one cycle).

If a single ``computing element'' (``CE'') has both scalar

function and vector function, use the shorter execution time value.

Note Y: For the ``CE'' that does not implement FP add or FP

multiply, but that performs FP divide:

TR24FE94.028

If the ``CE'' implements FP reciprocal, but not FP add, FP

multiply or FP divide, then:

TR24FE94.029

If none of the specified instructions is implemented, the

effective floating point (FP) rate is 0.

Note Z: In simple logic operations, a single instruction

performs a single logic manipulation of no more than two operands of

given lengths.

In complex logic operations, a single instruction performs

multiple logic manipulations to produce one or more results from two

or more operands.

Rates should be calculated for all supported operand lengths

considering both pipelined operations (if supported), and non-

pipelined operations, using the fastest executing instruction for

each operand length based on:

1. Pipelined or register-to-register operations. Exclude

extraordinarily short execution times generated for operations on a

predetermined operand or operands (for example, multiplication by 0

or 1). If no register-to-register operations are implemented,

continue with (2).

2. The faster of register-to-memory or memory-to-register

operations; if these also do not exist, then continue with (3).

3. Memory-to-memory.

In each case above, use the shortest execution time certified by

the manufacturer.

Step 2: TP for each supported operand length WL: Adjust the

effective rate R (or Rt) by the word length adjustment L as

follows:

TP=R * L, where L=(1/3+WL/96).

Note: The word length WL used in these calculations is the

operand length in bits. (If an operation uses operands of different

lengths, select the largest word length.)

The combination of a mantissa ALU and an exponent ALU of a

floating point processor or unit is considered to be one ``computing

element'' (``CE'') with a Word Length (WL) equal to the number of

bits in the data representation (typically 32 or 64) for purposes of

the ``Composite Theoretical Performance'' (``CTP'') calculation.

This adjustment is not applied to specialized logic processors

that do not use XOR instructions. In this case TP=R.

Select the maximum resulting value of TP for:

Each XP-only ``CE'' (Rxp);

Each FP-only ``CE'' (Rfp);

Each combined FP and XP ``CE'' (R);

Each simple logic processor not implementing any of the specified

arithmetic operations; and

Each special logic processor not using any of the specified

arithmetic or logic operations.

Step 3: ``CTP'' for aggregations of ``CEs'', including CPUs:

For a CPU with a single ``CE'', ``CTP''=TP (for CEs performing

both fixed and floating point operations, TP=max (TPfp,

TPxp)).

``CTP'' for aggregations of multiple ``CEs'' operating

simultaneously is calculated as follows:

Note 1: For aggregrations that do not allow all of the ``CEs''

to run simultaneously, the possible combination of ``CEs'' that

provides the largest ``CTP'' should be used. The TP of each

contributing ``CE'' is to be calculated at its maximum value

theoretically possible before the ``CTP'' of the combination is

derived.

N.B.: To determine the possible combinations of simultaneously

operating ``CEs'', generate an instruction sequence that initiates

operations in multiple ``CEs'', beginning with the slowest ``CE''

(the one needing the largest number of cycles to complete its

operation) and ending with the fastest ``CE''. At each cycle of the

sequence, the combination of ``CEs'' that are in operation during

that cycle is a possible combination.

The instruction sequence must take into account all hardware

and/or architectural constraints on overlapping operations.

Note 2: A single integrated circuit chip or board assembly may

contain multiple ``CEs''.

Note 3: Simultaneous operations are assumed to exist when the

computer manufacturer claims concurrent, parallel or simultaneous

operation or execution in a manual or brochure for the computer.

Note 4: ``CTP'' values are not to be aggregated for ``CE''-

combinations (inter)connected by ``Local Area Networks'', Wide Area

Networks, I/O shared connections/devices, I/O controllers and any

communication interconnection implemented by software.

Note 5: ``CTP'' values must be aggregated for multiple ``CEs''

specially designed to enhance performance by aggregation, operating

simultaneously and sharing memory-, or multiple memory/``CE''-

combinations operating simultaneously utilizing specially designed

hardware.

This aggregation does not apply to ``assemblies'' controlled by

4A03.d. ``CTP''=TP1+C2*TP2+. . .+Cn*TPn,

where the TPs are ordered by value, with TP1 being the highest,

TP2 being the second highest, * * * and TPn being the

lowest. Ci is a coefficient determined by the strength of the

interconnection between ``CEs'', as follows:

For multiple ``CEs'' operating simultaneously and sharing

memory:

TR24FE94.030

Note 1: When the ``CTP'' calculated by the above method does not

exceed 194 Mtops, the following formula may be used to calculate

Ci:

TR24FE94.031

Where m equals the number of ``CEs'' or groups of ``CEs''

sharing access.

Provided:

1. The TPi of each ``CE'' or group of ``CEs'' does not

exceed 30 Mtops;

2. The ``CEs'' or groups of ``CEs'' share access to main memory

(excluding cache memory) over a single channel; and

3. Only one ``CE'' or group of ``CEs'' can have use of the

channel at any given time.

N.B.: This does not apply to items controlled under Category 3.

Note 2: ``CEs'' share memory if they access a common segment of

solid state memory. This memory may include cache memory, main

memory, or other internal memory. Peripheral memory devices such as

disk drives, tape drives, or RAM disks are not included.

For multiple ``CEs'' or groups of ``CEs'' not sharing memory,

interconnected by one or more data channels:

Ci=0.75 * ki (i=2, ..., 32) (see NOTE on ki factor)

=0.60 * ki (i=33, ..., 64)

=0.45 * ki (i=65, ..., 256)

=0.30 * ki (i > 256)

The value of Ci is based on the number of ``CEs'', not the

number of nodes.

where:

ki=min (Si/Kr, 1), and

Kr=normalizing factor of 20 MByte/s.

Si=sum of the maximum data rates (in units of MByte/s) for

all data channels connected to the ith ``CE'' or group of

``CEs'' sharing memory.

When calculating a Ci for a group of ``CEs'', the number of

the first ``CE'' in a group determines the proper limit for Ci.

For example, in an aggregation of groups consisting of 3 ``CEs''

each, the 22nd group will contain ``CE''64, ``CE''65, and

``CE''66. The proper limit for Ci for this group is 0.60.

Aggregation (of ``CEs'' or groups of ``CEs'') should be from the

fastest-to-slowest; i.e.:

TP1 TP2 TPn, and

in the case of TPi=TPi+1, from the largest to smallest;

i.e.:

Ci Ci+1

Note: The ki factor is not to be applied to ``CEs'' to 2 to

12 if the TPi of the ``CE'' or group of ``CEs'' is more than 50

Mtops; i.e., Ci for ``CEs'' 2 to 12 is 0.75.

Dated: February 18, 1994.

Sue E. Eckert,

Assistant Secretary for Export Administration.

[FR Doc. 94-4156 Filed 2-18-94; 4:49 pm]

BILLING CODE 3510-DT-P